18F FDG-PET/CT evaluation of histological response after neoadjuvant treatment in patients with cancer of the esophagus or gastroesophageal junction.
Conclusion Our results are similar to those of previous studies and show that changes in the rate of SUR can be used reliably to differentiate histological responders from non-responders after neoadjuvant treatment with either chemoradiotherapy or chemotherapy. Limitations of current PET technology are likely to restrict the possibility of accurately ruling out limited residual disease. PMID: 30111193 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - August 15, 2018 Category: Radiology Authors: Gabrielson S, Sanchez-Crespo A, Klevebro F, Axelsson R, Albert Tsai J, Johansson O, Nilsson M Tags: Acta Radiol Source Type: research

The 100 top-cited articles focused on magnetic resonance: a bibliometric analysis.
Conclusion Our study presents a detailed list and analysis of the 100 top-cited articles on MR, which provides an insight into historical development in this field. PMID: 30111194 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - August 15, 2018 Category: Radiology Authors: Yoon SJ, Yoon DY, Ja Lim K, Moon JY, Hong SJ, Baek S, Yun EJ Tags: Acta Radiol Source Type: research

Outcomes of percutaneous transluminal biopsy of biliary lesions using a dedicated forceps system.
Conclusion Percutaneous transluminal biopsy of biliary strictures during PTBD using the specific forceps system was proven safe and resulted in high technical success and diagnostic accuracy rates. PMID: 30111195 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - August 15, 2018 Category: Radiology Authors: Inchingolo R, Spiliopoulos S, Nestola M, Nardella M Tags: Acta Radiol Source Type: research

Third generation dual-energy CT with 80/150  Sn kV for head and neck tumor imaging.
Third generation dual-energy CT with 80/150 Sn kV for head and neck tumor imaging. Acta Radiol. 2018 Aug 08;:284185118788896 Authors: Suntharalingam S, Stenzel E, Wetter A, Guberina N, Umutlu L, Schlosser T, Nassenstein K Abstract Background Dual-energy CT (DECT) provides additional image datasets which enable improved tumor delineation or reduction of beam hardening artifacts in patients with head and neck squamous cell carcinoma (SCC). Purpose To assess radiation dose and image quality of third-generation DECT of the head and neck in comparison to single-energy CT (SECT). Material and ...
Source: Acta Radiologica - August 8, 2018 Category: Radiology Authors: Suntharalingam S, Stenzel E, Wetter A, Guberina N, Umutlu L, Schlosser T, Nassenstein K Tags: Acta Radiol Source Type: research

Non-traumatic ligamentum teres tears: association with MRI morphometry of the hip.
Conclusion There is an association between LT tears and acetabular bony morphology; an insufficient acetabular coverage is associated with complete tear of the LT. As the insufficient acetabular coverage may predispose to ligamentum teres tear, the ligamentum teres should be thoroughly evaluated in those with insufficient acetabular coverage, as a potential cause of hip pain. PMID: 30086650 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - August 7, 2018 Category: Radiology Authors: Park J, Kang Y, Ahn JM, Lee E, Lee JW, Kang HS Tags: Acta Radiol Source Type: research

Differentiation of intrapancreatic accessory spleen from small hypervascular neuroendocrine tumor of the pancreas: textural analysis on contrast-enhanced computed tomography.
Abstract Background Intrapancreatic accessory spleens (IPASs) are usually misdiagnosed as pancreatic neuroendocrine tumors (PNETs). Texture analysis is valuable in tumor detection, diagnosis, and staging. Purpose To identify the potential of texture features in differentiating IPASs from small hypervascular PNETs. Material and Methods Twenty-one patients with PNETs and 13 individuals with IPASs who underwent pretreatment dynamic contrast-enhanced computed tomography (CT) were retrospectively analyzed. The routine imaging features-such as location, size, margin, cystic or solid appearance, enhancement degree and pa...
Source: Acta Radiologica - August 7, 2018 Category: Radiology Authors: Lin X, Xu L, Wu A, Guo C, Chen X, Wang Z Tags: Acta Radiol Source Type: research

Association between aortic valvular calcification and characteristics of the aortic valve in patients with bicuspid aortic valve stenosis.
This study included 161 BAV patients with AS regardless of aortic regurgitation who underwent transthoracic echocardiography and CCT. BAVs were classified according to orientation of cusps and presence of raphe. Associations of AVCS with characteristics of BAV morphology and functional variables were determined by linear regression analysis. Area under the receiver operating characteristic curve (AUC) was used to determine the cut-off AVCS greater than which the diagnosis of severe AS was optimized. Results AVCS was significantly different according to sex ( P 
Source: Acta Radiologica - August 6, 2018 Category: Radiology Authors: Choi BH, Ko SM, Shin JK, Chee HK, Kim JS, Kim J Tags: Acta Radiol Source Type: research

Regional differences of fat depot attenuation using non-contrast, contrast-enhanced, and delayed-enhanced cardiac CT.
Abstract Background Regional fat density assessed by computed tomography (CT) has been suggested as a marker of perivascular adipose tissue inflammation. Dual energy CT (DECT) allows improved tissue characterization compared to conventional CT. Purpose To explore whether DECT might aid regional fat density discrimination. Material and Methods We included patients who had completed a non-enhanced cardiac CT scan, CT coronary angiography (CTCA), and a delayed enhancement CT. Attenuation levels (Hounsfield units [HU]) were assessed at the epicardial, paracardial, visceral, and subcutaneous fat. The number of coronary...
Source: Acta Radiologica - July 31, 2018 Category: Radiology Authors: Rodriguez-Granillo GA, Capunay C, Deviggiano A, De Zan M, Carrascosa P Tags: Acta Radiol Source Type: research

Imaging findings of radiologically misdiagnosed nodular fasciitis.
Conclusion Nodular fasciitis in young adults and children is usually superficial, rapid growing, well-defined, and homogeneous, frequently with a "fascial tail" sign. Radiologically, it can resemble a benign cyst and might be easily misdiagnosed. Therefore, nodular fasciitis should be remembered in the differential diagnosis for superficial soft tissue tumor found in young adult and children. PMID: 30060672 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - July 31, 2018 Category: Radiology Authors: Hu PA, Zhou ZR Tags: Acta Radiol Source Type: research

Prediction of postoperative lung function in lung cancer patients using perfusion scintigraphy.
Conclusion Predictions with each processing method of lung perfusion scintigraphy showed nearly similar results to the actual postoperative lung function. The posterior oblique method of lung perfusion scintigraphy showed a very small difference to such an extent as to be equal to the observed FEV1, implying that this method may be applied for predicting postoperative lung function in lung cancer patients. PMID: 30056737 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - July 30, 2018 Category: Radiology Authors: Yoo ID, Im JJ, Chung YA, Choi EK, Oh JK, Lee SH Tags: Acta Radiol Source Type: research

Growth rate of serous pancreatic neoplasms in  vivo: a retrospective, observational study.
Conclusions In the absence of diagnostic intervention, the in vivo growth rate of SPNs was 1.9 mm/year (95% CI = 1.6-2.2). EUS-guided FNA or CNB may affect the growth rate of SPNs. PMID: 30056739 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - July 28, 2018 Category: Radiology Authors: Park C, Kim HJ, Kim SY, Lee SS, Byun JH, Kim SC, Kim MH Tags: Acta Radiol Source Type: research

Accuracy of tumor size measurement: comparison of B-mode ultrasound, strain elastography, and 2D and 3D shear wave elastography with histopathological lesion size.
FK Abstract Background Predicting the exact extent of a breast tumor is of great importance for oncologic treatment strategies. Different types of elastography can be used as new tools for measuring lesion size. Purpose To provide evidence regarding the accuracy of tumor size measurement of strain elastography (SE), two-dimensional (2D) and three-dimensional (3D) shear wave elastography (SWE), and conventional B-image ultrasound. Material and Methods In this prospective study, the diameter of 105 malignant breast lesions was measured by SE, 2D and 3D SWE, and B-mode ultrasound. The histopathological lesion size w...
Source: Acta Radiologica - July 25, 2018 Category: Radiology Authors: Farrokh A, Maass N, Treu L, Heilmann T, Schäfer FK Tags: Acta Radiol Source Type: research

Radiological prizes awarded in 2017.
PMID: 29787311 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - May 26, 2018 Category: Radiology Authors: Skjennald A Tags: Acta Radiol Source Type: research

Complications in Vascular Interventional Therapy: Case-Based Solutions Mueller Huelsbeck S and Jahnke T (eds), Complications in Vascular Interventional Therapy: Case-Based Solutions , Thieme: Stuttgart, Germany, 2016, 269 pp.: 978-3-13-175831-6, £125 (hbk).
Complications in Vascular Interventional Therapy: Case-Based Solutions Mueller Huelsbeck S and Jahnke T (eds), Complications in Vascular Interventional Therapy: Case-Based Solutions , Thieme: Stuttgart, Germany, 2016, 269 pp.: 978-3-13-175831-6, £125 (hbk). Acta Radiol. 2018 Jun;59(6):NP1 Authors: Lonn L PMID: 29787312 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - May 26, 2018 Category: Radiology Authors: Lonn L Tags: Acta Radiol Source Type: research

Radiographic analysis of the correlation between ossification of the nuchal ligament and sagittal alignment and segmental stability of the cervical spine in patients with cervical spondylotic myelopathy.
Conclusion Patients with ONL are more likely to have abnormal sagittal alignment and instability of the cervical spine. Thus, increased awareness and appreciation of this often-overlooked radiographic finding is warranted during diagnosis and treatment of instability-related cervical pathologies and injuries. PMID: 29788751 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Ying J, Teng H, Qian Y, Hu Y, Wen T, Ruan D, Zhu M Tags: Acta Radiol Source Type: research

Lung cancer screening with MRI: characterization of nodules with different non-enhanced MRI sequences.
Conclusion Malignant as well as calcified and subsolid nodules seem to have distinctive characteristics on different MRI sequences. T2-imaging was most suitable for the detection of nodules ≥ 6 mm. PMID: 29792040 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Meier-Schroers M, Homsi R, Schild HH, Thomas D Tags: Acta Radiol Source Type: research

Increased diagnostic confidence in the diagnosis of pituitary micro-lesions with the addition of three-dimensional sampling perfection with application-optimized contrasts using different flip-angle evolutions sequences.
Abstract Background Conventional magnetic resonance imaging (MRI) is adversely affected by thick slices, small intersection gaps, and the partial volume effect, leading to the missed diagnosis or misdiagnosis of pituitary micro-lesions. Purpose To evaluate the diagnostic yield of three-dimensional sampling perfection with application-optimized contrasts using different flip-angle evolutions (3D-T2 SPACE) sequences compared with a standard MRI protocol for the diagnosis of pituitary micro-lesions. Material and Methods The MRI findings of 664 patients with clinically suspected pituitary lesions were retrospectively ...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Tang Y, Wu Y, Zhang H, Wang J, Yao Z Tags: Acta Radiol Source Type: research

Imaging predictors of outcome in acute spontaneous subarachnoid hemorrhage: a review of the literature.
e;o P Abstract Spontaneous subarachnoid hemorrhage (SAH) accounts for about 5% of strokes, but has a very high morbidity and mortality. Many survivors are left with important cognitive impairment and are severely incapacitated. Prediction of complications such as vasospasm and delayed cerebral ischemia, and of clinical outcome after SAH, is challenging. Imaging studies are essential in the initial evaluation of SAH patients and are increasingly relevant in assessing for complications and prognosis. In this article, we reviewed the role of imaging studies in evaluating early brain injury and predicting complication...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Fragata I, Canhão P Tags: Acta Radiol Source Type: research

A new method for visualizing pulmonary artery microvasculature using synchrotron radiation pulmonary microangiography: the measurement of pulmonary arterial blood flow velocity in the high pulmonary blood flow rat model.
Abstract Background Increased pulmonary blood flow (PBF) and shear stress may provoke irreversible vascular remodeling, yet invasive visualization of the microvasculature complicates monitoring. A non-invasive imaging methodology would therefore safely provide mechanistic insights into the progression of high PBF-induced vascular remodeling. Purpose To establish a novel microvasculature visualization method using synchrotron radiation pulmonary microangiography (SRPA) that can also calculate PBF velocity in vivo. Material and Methods A high PBF rat model was established by making a fistula between the abdominal ao...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Tokunaga C, Matsushita S, Sakamoto H, Hyodo K, Kubota M, Tanioka K, Hiramatsu Y Tags: Acta Radiol Source Type: research

Ultrasonographic optic nerve sheath diameter to detect increased intracranial pressure in adults: a meta-analysis.
Conclusion US ONSD > 5.0 mm can be used to rapidly detect IICP in adults in emergency departments and intensive care units. Further meta-analysis based on individual patient-level databases is needed to confirm these results. PMID: 29768927 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Kim SE, Hong EP, Kim HC, Lee SU, Jeon JP Tags: Acta Radiol Source Type: research

Automated daily quality control analysis for mammography in a multi-unit imaging center.
Conclusion Automated image quality analysis enables monitoring the performance of digital mammography systems in an efficient, centralized manner. PMID: 29768928 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Sundell VM, Mäkelä T, Meaney A, Kaasalainen T, Savolainen S Tags: Acta Radiol Source Type: research

Diagnostic accuracy of dual-source and 320-row computed tomography angiography in detecting coronary in-stent restenosis: a systematic review and meta-analysis.
Abstract Background Dual-source and 320-row computed tomography angiography (CTA) are increasingly used in diagnosing coronary in-stent restenosis (CISR). Purpose We sought to perform this meta-analysis to evaluate the diagnostic accuracy of dual-source computed tomography angiography (DSCTA) and 320-row CTA in detecting CISR when compared to invasive coronary angiography. Material and Methods Five scientific databases (PubMed, Embase, Scopus, The Cochrane Library, and Web of Science) were searched for research studies in which DSCTA and/or 320-row CTA were used as diagnostic tools for CISR, as recently as October...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Liu HF, Wang M, Xu YS, Shrestha MK, Lu XR, Lei JQ Tags: Acta Radiol Source Type: research

Patterns of malignant non-mass enhancement on 3-T breast MRI help predict invasiveness: using the BI-RADS lexicon fifth edition.
Abstract Background Non-mass enhancements (NME) with invasive components account for 10-42% of total malignant NMEs. The factors associated with invasiveness on magnetic resonance imaging (MRI) could be useful for clinical assessment and treatment. Purpose To evaluate the clinical significances of the distributions and internal enhancement patterns (IEP) of malignant NMEs on 3-T breast MRI. Material and Methods A total of 448 consecutive women with newly diagnosed breast cancer that had undergone preoperative MRI and surgery between February 2013 and March 2016 were identified. After exclusions, 72 malignant NMEs ...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Lee SM, Nam KJ, Choo KS, Kim JY, Jeong DW, Kim HY, Kim JY Tags: Acta Radiol Source Type: research

Temporal bone contrast-enhanced high-resolution CT evaluation of pulsatile tinnitus after sigmoid sinus wall reconstruction.
Abstract Background Sigmoid sinus wall reconstruction (SSWR) is a proven effective treatment for pulsatile tinnitus (PT) caused by sigmoid sinus wall dehiscence (SSWD) with or without sigmoid sinus diverticulum (SSD); however, comprehensive analysis of the postoperative imaging manifestations has not yet been reported. Purpose To analyze temporal bone computed tomography (CT) imaging features following SSWR in patients with PT. Material and Methods Following SSWR, temporal bone contrast-enhanced high-resolution CT (HRCT) images from 33 PT cases were retrospectively analyzed. Patients were divided into two groups b...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Ding H, Zhao P, Lv H, Liu X, Zeng R, Wang G, Gong S, Wang Z Tags: Acta Radiol Source Type: research

Change in microcalcifications on mammography after neoadjuvant chemotherapy in breast cancer patients: correlation with tumor response grade and comparison with lesion extent.
Abstract Background After neoadjuvant chemotherapy (NAC), persistent microcalcifications are often observed in spite of a decrease in the primary tumor size. Purpose To analyze the changes in microcalcifications after NAC and to evaluate the accuracy of residual microcalcifications in predicting the extent of residual cancer. Material and Methods Eighty patients who received NAC and underwent both mammography and magnetic resonance imaging (MRI) before and after the completion of NAC were included. The location of microcalcifications was classified into two types: inside the mass and outside the mass. Results The ...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Yim H, Ha T, Kang DK, Park SY, Jung Y, Kim TH Tags: Acta Radiol Source Type: research

Evaluation of anterior intermeniscal ligament in discoid lateral meniscus cases and presenting the accompanying meniscal pathologies with MRI.
Conclusion No statistically significant correlation was found between the type of DLM and type of AIML ( P = 0.855), between the type of DLM and meniscal pathology ( P = 0.791), or between the type of AIML and meniscal pathology ( P = 0.282). PMID: 29754495 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Koç A, Tokmak TT, Karabıyık Ö, Türk G Tags: Acta Radiol Source Type: research

Detection of loco-regional recurrence in malignant head and neck tumors: a comparison of CT, MRI, and FDG PET-CT.
Conclusion MRI + PET-CT offered the highest diagnostic performance in the detection of loco-regional recurrence of malignant head and neck tumor, compared with CT, MRI, PET-CT, and other combinations including CT. PMID: 29754496 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Kim ES, Yoon DY, Moon JY, Baek S, Han YM, Seo YL, Yun EJ Tags: Acta Radiol Source Type: research

Dependence of intravoxel incoherent motion diffusion MR threshold b-value selection for separating perfusion and diffusion compartments and liver fibrosis diagnostic performance.
Lu PX Abstract Background Intravoxel incoherent motion (IVIM) tissue parameters depend on the threshold b-value. Purpose To explore how threshold b-value impacts PF ( f), Dslow ( D), and Dfast ( D*) values and their performance for liver fibrosis detection. Material and Methods Fifteen healthy volunteers and 33 hepatitis B patients were included. With a 1.5-T magnetic resonance (MR) scanner and respiration gating, IVIM data were acquired with ten b-values of 10, 20, 40, 60, 80, 100, 150, 200, 400, and 800 s/mm2. Signal measurement was performed on the right liver. Segmented-unconstrained analysis was used t...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Wáng YXJ, Li YT, Chevallier O, Huang H, Leung JCS, Chen W, Lu PX Tags: Acta Radiol Source Type: research

Diagnostic value of MRI signs in differentiating Ewing sarcoma from osteomyelitis.
TC Abstract Background The value of magnetic resonance imaging (MRI) signs in differentiating Ewing sarcoma from osteomyelitis has not be thoroughly investigated. Purpose To investigate the value of various MRI signs in differentiating Ewing sarcoma from osteomyelitis. Material and Methods Forty-one patients who underwent MRI because of a bone lesion of unknown nature with a differential diagnosis that included both Ewing sarcoma and osteomyelitis were included. Two observers assessed several MRI signs, including the transition zone of the bone lesion, the presence of a soft-tissue mass, intramedullary and extram...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Kasalak Ö, Overbosch J, Adams HJ, Dammann A, Dierckx RA, Jutte PC, Kwee TC Tags: Acta Radiol Source Type: research

Can unenhanced MRI of the breast replace contrast-enhanced MRI in assessing response to neoadjuvant chemotherapy?
Conclusion Ue-MRI can achieve similar results to CE-MRI for the assessment of tumor response to NAC. ADC values can differentiate responders from non-responders. PMID: 29742918 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Cavallo Marincola B, Telesca M, Zaccagna F, Riemer F, Anzidei M, Catalano C, Pediconi F Tags: Acta Radiol Source Type: research

Factors associated with the size of the adhesio interthalamica based on 3.0-T magnetic resonance images.
Abstract Background Adhesio interthalamica (AI) is a small structure connecting bilateral thalami. Purpose To evaluate the effects of patient age, sex, and lateral diameter of the third ventricle on the long diameter of the AI using multivariate analyses based on magnetic resonance (MR) images obtained with 3.0-T scanners. Material and Methods This clinical retrospective study included images of 153 patients who underwent MR examination using 3.0-T scanners. The long diameter of the AI and lateral diameter of the third ventricle were measured on images in the mid-sagittal plane and axial plane at the anterior comm...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Yasaka K, Akai H, Kunimatsu A, Kiryu S, Abe O Tags: Acta Radiol Source Type: research

Benign and malignant skull-involved lesions: discriminative value of conventional CT and MRI combined with diffusion-weighted MRI.
Abstract Background Little is known about the value of computed tomography (CT) and magnetic resonance imaging (MRI) combined with diffusion-weighted imaging (DWI) in distinguishing malignant from benign skull-involved lesions. Purpose To evaluate the discriminative value of DWI combined with conventional CT and MRI for differentiating between benign and malignant skull-involved lesions. Material and Methods CT and MRI findings of 58 patients with pathologically proven skull-involved lesions (43 benign and 15 malignant) were retrospectively reviewed. Conventional CT and MRI characteristics and apparent diffusion c...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Tu Z, Xiao Z, Zheng Y, Huang H, Yang L, Cao D Tags: Acta Radiol Source Type: research

Long-term prognostic value of coronary computed tomography angiography in chest pain patients.
Abstract Background Coronary computed tomography angiography (CCTA) is increasingly used to detect coronary artery disease (CAD), but long-term follow-up studies are still scarce. Purpose To evaluate the prognostic value of CCTA in patients with suspected CAD. Material and Methods A total of 1205 consecutive CCTA patients with chest pain were classified as normal coronary arteries, non-obstructive CAD, or obstructive CAD. The primary outcome was major adverse cardiac event (MACE), defined as a composite outcome including cardiac death, myocardial infarction, unstable angina pectoris, or late revascularization (aft...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Sandstedt M, De Geer J, Henriksson L, Engvall J, Janzon M, Persson A, Alfredsson J Tags: Acta Radiol Source Type: research

Diagnostic accuracy of simplified ultrasound hand examination protocols for detection of inflammation and disease burden in patients with rheumatoid arthritis.
Abstract Background There is no consensus regarding the minimum number of joints that should be included in an ultrasound (US) scoring system to reliably assess for disease activity in rheumatoid arthritis (RA). Purpose To assess whether simplified US protocols for hand examination are as informative as the examination of 22 joints in patients with RA, and to correlate the US parameters with disease activity (DAS-28). Material and Methods This is a cross-sectional study of 224 RA patients stratified based on their DAS-28 scores and assessed using eight preselected US examination protocols, including 22, 18, 16, 14...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Sivakumaran P, Hussain S, Attipoe L, Ciurtin C Tags: Acta Radiol Source Type: research

Comparison of the SRmax, SRave, and color map of strain-elastography in differentiating malignant from benign breast lesions.
Conclusion The SRmax is a more reliable diagnostic tool than the SRave and color map for differentiating benign and malignant breast lesions. PMID: 29726693 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Moon JH, Koh SH, Park SY, Hwang JY, Woo JY Tags: Acta Radiol Source Type: research

Low-dose CT of postoperative pelvic fractures: a comparison with radiography.
i M Abstract Background Computed tomography (CT) is superior to conventional radiography (CR) for assessing internal fixation of pelvic fractures, but with a higher radiation exposure. Low-dose CT (LDCT) could possibly have a sufficient diagnostic accuracy but with a lower radiation dose. Purpose To compare postoperative diagnostic accuracy of LDCT and CR after open reduction and internal fixation of pelvic fracture. Material and Methods Twenty-one patients were examined with LDCT and CR 0-9 days after surgery. The examinations were reviewed by two musculoskeletal radiologists. Hardware, degree of fracture reducti...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Eriksson T, Berg P, Olerud C, Shalabi A, Hänni M Tags: Acta Radiol Source Type: research

Topogram-based tube current modulation of head computed tomography for optimizing image quality while protecting the eye lens with shielding.
Conclusion Image artifacts induced by the bismuth-antimony shield at a fixed tube current for lenticular radioprotection were significantly reduced by topogram-based TCM, which increased the SNR of the anthropomorphic nasal bones and periorbital tissues. PMID: 29665705 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Lin MF, Chen CY, Lee YH, Li CW, Gerweck LE, Wang H, Chan WP Tags: Acta Radiol Source Type: research

The efficacy of using computer-aided detection (CAD) for detection of breast cancer in mammography screening: a systematic review.
Conclusion All but two studies showed an increase in RR, sensitivity and CDR when adding CAD to SR. Compared to DR no statistically significant differences in sensitivity or CDR were reported. Additional studies based on organized population-based screening programs, with longer follow-up time, high-volume readers, and digital mammography are needed to evaluate the efficacy of CAD. PMID: 29665706 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Henriksen EL, Carlsen JF, Vejborg IM, Nielsen MB, Lauridsen CA Tags: Acta Radiol Source Type: research

Relationship between kurtosis and bi-exponential characterization of high b-value diffusion-weighted imaging: application to prostate cancer.
Conclusion In a two-component diffusion environment, KCOMP is a scaled value of SFs and is thus able to discriminate suspicious lesions with equal precision . KCE provides a computationally inexpensive approximation of kurtosis but does not provide the same discriminatory abilities as SFs and KCOMP. PMID: 29665707 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Karunamuni RA, Kuperman J, Seibert TM, Schenker N, Rakow-Penner R, Sundar VS, Teruel JR, Goa PE, Karow DS, Dale AM, White NS Tags: Acta Radiol Source Type: research

Cho/Cr ratio at MR spectroscopy as a biomarker for cellular proliferation activity and prognosis in glioma: correlation with the expression of minichromosome maintenance protein 2.
Abstract Background Magnetic resonance (MR) spectroscopy (1H-MRS) has been demonstrated to be useful in grading glioma, but the utility in assessing cellular proliferation activity and prognosis correlated with the expression of minichromosome maintenance protein 2 (MCM2) has not been reported. Purpose To explore the correlation between proton MR spectroscopy parameters (including choline [Cho]/creatine [Cr], N-acetyl aspartate [NAA]/Cr, and Cho/NAA ratios) and the expression of MCM2 and to further evaluate whether 1H-MRS can predict cell proliferative activity and provide prognostic information in high-grade glio...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Gao W, Wang X, Li F, Shi W, Li H, Zeng Q Tags: Acta Radiol Source Type: research

Potential occupational exposures in diagnostic and interventional radiology: statistical modeling based on Finnish national dose registry data.
Conclusion It is very unlikely that the Category B annual effective dose limit of 6 mSv could even potentially be exceeded using modern equipment and appropriate working methods. Therefore, in terms of estimated effective dose, workers in diagnostic and interventional radiology could be placed into Category B in Finland. Current national personal monitoring practice could be replaced or supplemented using active personal dosimeters, which offer more effective means for optimizing working methods. PMID: 29665709 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Pekkarinen A, Siiskonen T, Lehtinen M, Savolainen S, Kortesniemi M Tags: Acta Radiol Source Type: research

Significance of incidental intra-articular and peri-articular FDG avid foci on PET/CT.
Abstract Background Positron emission tomography/computed tomography (PET/CT) is a useful imaging adjunct in patients with sarcoma. Intra-articular and peri-articular 18F-fluoro-2-deoxy-D-glucose (FDG) avid lesions are often discovered incidentally. Purpose To describe the etiology, appearance, and standardized uptake values (SUV) of incidentally detected FDG avid intra-articular and peri-articular foci in patients with sarcoma. Material and Methods The institutional sarcoma database between November 2011 and November 2016 was retrospectively reviewed. Patients were included if a PET/CT scan was performed and an F...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Cohen-Levy WB, Pretell-Mazzini J, Singer AD, Subhawong T, Greif DN, Jose J Tags: Acta Radiol Source Type: research

Transarterial embolization for postpartum hemorrhage: lessons learned.
Conclusion The discovered independent risk factors of TAE clinical failure existed before or during the TAE procedure and could not reflect the post-TAE conditions. Although the post-TAE shock index was not an independent factor, it reflected the conditions after TAE and could indicate TAE clinical failure timely. PMID: 29667848 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Fu CJ, Irama W, Wong YC, Tseng HJ, Wang LJ, Yeow KM, Wu CH Tags: Acta Radiol Source Type: research

New section editor: Cardiac Imaging.
PMID: 29667879 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Thomsen HS Tags: Acta Radiol Source Type: research

Motion artifacts, lesion type, and parenchymal enhancement in breast MRI: what does really influence diagnostic accuracy?
Abstract Background Motion artifacts can reduce image quality of breast magnetic resonance imaging (MRI). There is a lack of data regarding their effect on diagnostic estimates. Purpose To evaluate factors that potentially influence readers' diagnostic estimates in breast MRI: motion artifacts; amount of fibroglandular tissue; background parenchymal enhancement; lesion size; and lesion type. Material and Methods This Institutional Review Board-approved, retrospective, cross-sectional, single-center study included 320 patients (mean age = 55.1 years) with 334 histologically verified breast lesions (13...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Clauser P, Dietzel M, Weber M, Kaiser CG, Baltzer PA Tags: Acta Radiol Source Type: research

The ability of ADC measurements in the assessment of patients with stage I endometrial carcinoma based on three risk categories.
Conclusion ADC measurements may have the potential to select intermediate-risk and high-risk stage I EC patients for lymphadenectomy. PMID: 29667881 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Wang S, Liu J, Yuan F, Chen X, Ma F, Zhang G, Tian X Tags: Acta Radiol Source Type: research

New Doppler imaging technique for assessing angiogenesis in breast tumors: correlation with immunohistochemically analyzed microvessels density.
Conclusion Our data confirmed the correlation between a new Doppler imaging technique, AngioPLUS, and MVD. We suggest that AngioPLUS can be used for assessing MVD in breast tumors. PMID: 29667882 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Kim S, Lee HJ, Ko KH, Park AY, Koh J, Jung HK Tags: Acta Radiol Source Type: research

Long-term outcome of stenting for atherosclerotic renal artery stenosis and the effect of angiographic restenosis.
Conclusion Long-term prognosis after PTRA for atherosclerotic RAS is dismal, with high mortality and morbidity and reduced renal function, despite maintained hypertension control. Restenosis does not appear to affect late outcome. PMID: 29660989 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Zachrisson K, Elverfors S, Jensen G, Hellström M, Svensson M, Herlitz H, Falkenberg M Tags: Acta Radiol Source Type: research

Corrigendum.
Authors: Abstract Arimoto MK, Nakamoto Y, Higashi T, et al. Intra- and inter-observer agreement in the visual interpretation of interim 18F-FDG PET/CT in malignant lymphoma: influence of clinical information. Acta Radiol. Epub ahead of print January 15. DOI: 10.1177/0284185117751279 . In this article, 'Intra-class correlation coefficients' or 'ICCs' should have read 'Kappa values' on pages 3 and 4 and Supplementary Material page 1. PMID: 29635924 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Tags: Acta Radiol Source Type: research

Effects of bismuth breast shielding on iodine quantification in dual-energy computed tomography: an experimental phantom study.
Conclusion Although using the bismuth breast shield may decrease radiation exposure to the breast on DECT, it may also significantly affect iodine quantification. PMID: 29635925 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Jang H, Hur J, Choi BW, Im DJ, Hong YJ, Kim YJ, Lee HJ Tags: Acta Radiol Source Type: research