Association of cardiovascular risk factors on myocardial perfusion and fibrosis in asymptomatic individuals: cardiac magnetic resonance study.
Abstract Background Myocardial perfusion reserve index (MPRI) and extracellular volume fraction (ECV) on cardiac magnetic resonance (CMR) are known to quantify coronary microvascular dysfunction and myocardial fibrosis, respectively. Purpose To demonstrate that cardiovascular risk factors such as hypertension, diabetes, hyperlipidemia, and smoking are correlated with MPRI and ECV on CMR in asymptomatic individuals. Material and Methods Between October 2013 and July 2014, 196 individuals underwent CMR. After excluding those with chest pain, arrhythmia, and obstructive coronary artery disease, participants were divi...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Cha MJ, Kim SM, Kim HS, Kim Y, Choe YH Tags: Acta Radiol Source Type: research

Five-year outcome after pelvic floor reconstructive surgery: evaluation using dynamic magnetic resonance imaging compared to clinical examination and quality-of-life questionnaire.
Conclusion A tendency for recurrent and de novo POP was seen in all diagnostic modalities applied. dMRI objectively visualizes the interaction of the pelvic organs and the pelvic floor after reconstructive surgery and POM correlated best with the women's personal impression on pelvic floor complaints. PMID: 29409326 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Alt CD, Benner L, Mokry T, Lenz F, Hallscheidt P, Sohn C, Kauczor HU, Brocker KA Tags: Acta Radiol Source Type: research

Early animal model evaluation of an implantable contrast agent to enhance magnetic resonance imaging of arterial bypass vein grafts.
Conclusion A MRI contrast agent that binds covalently to the VG wall provides significant increase in T1W MRI signal with no observed adverse effects in a mouse model. Further optimization of the contrast agent to enhance its durability is required. PMID: 29378421 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Mitsouras D, Tao M, de Vries MR, Trocha K, Miranda OR, Vemula PK, Ding K, Imanzadeh A, Schoen FJ, Karp JM, Ozaki CK, Rybicki FJ Tags: Acta Radiol Source Type: research

High-quality low-dose cardiovascular computed tomography (CCT) in pediatric patients using a 64-slice scanner.
Conclusion High-quality pediatric CCT can be performed using a 64-slice scanner, with a radiation effective dose close to 2 mSv in about 50% of the cases. PMID: 29368540 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Cannaò PM, Secchi F, Alì M, D'Angelo ID, Scarabello M, Di Leo G, Sardanelli F Tags: Acta Radiol Source Type: research

Comparison of contrast-enhanced ultrasound with MRI in the diagnosis of complex cystic renal masses: a meta-analysis.
Conclusion Both CEUS and MRI have good diagnostic performance for cystic renal masses and can provide the reference for clinicians. CEUS is more sensitive but less specific than MRI. PMID: 29363321 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Zhou L, Tang L, Yang T, Chen W Tags: Acta Radiol Source Type: research

Comparison of peritumoral stromal tissue stiffness obtained by shear wave elastography between benign and malignant breast lesions.
Abstract Background Aggressive breast cancers produce abnormal peritumoral stiff areas, which can differ between benign and malignant lesions and between different subtypes of breast cancer. Purpose To compare the tissue stiffness of the inner tumor, tumor border, and peritumoral stroma (PS) between benign and malignant breast masses by shear wave elastography (SWE). Material and Methods We enrolled 133 consecutive patients who underwent preoperative SWE. Using OsiriX commercial software, we generated multiple 2-mm regions of interest (ROIs) in a linear arrangement on the inner tumor, tumor border, and PS. We obta...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Park HS, Shin HJ, Shin KC, Cha JH, Chae EY, Choi WJ, Kim HH Tags: Acta Radiol Source Type: research

Image quality in coronary computed tomography angiography: influence of adaptive statistical iterative reconstruction at various radiation dose levels.
Conclusion ASIR significantly decreased the subjectively assessed homogeneity of the left ventricular lumen and increased the objectively measured noise compared to FBP. Considering these results, ASIR at a reduced radiation dose should be implemented with caution. PMID: 29359950 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Precht H, Gerke O, Thygesen J, Egstrup K, Auscher S, Waaler D, Lambrechtsen J Tags: Acta Radiol Source Type: research

Process improvement methodologies uncover unexpected gaps in stroke care.
Conclusion Temporal analysis of ESEs in the emergency department allowed us to identify an unexpected decrease in ESEs and through process improvement methodologies (Lean and Six Sigma) and identify potential workflow elements contributing to this observation. PMID: 29345145 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Kuner AD, Schemmel AJ, Pooler BD, Yu JJ Tags: Acta Radiol Source Type: research

Quantitative contrast-enhanced ultrasound for monitoring vedolizumab therapy in inflammatory bowel disease patients: a pilot study.
Conclusion Analysis of bowel microvascularization by CEUS shows statistically significant changes in the wash-in-rate related to response of vedolizumab therapy. PMID: 29345146 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Goertz RS, Klett D, Wildner D, Atreya R, Neurath MF, Strobel D Tags: Acta Radiol Source Type: research

Triple-split-bolus versus single-bolus CT in abdominal trauma patients: a comparative study.
Conclusion The overall performance of the TS-CT protocol is similar to the standard PV-CT. Excellent visualization of the arterial tree and the collecting system may eliminate the need for separate scans. PMID: 29350048 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Godt JC, Eken T, Schulz A, Johansen CK, Aarsnes A, Dormagen JB Tags: Acta Radiol Source Type: research

Intra- and inter-observer agreement in the visual interpretation of interim 18F-FDG PET/CT in malignant lymphoma: influence of clinical information.
Conclusion The intra- and inter-observer agreements in evaluating interim PET/CT were relatively low for extranodal lesions, but they were substantial to almost perfect when interpreting nodal regions in malignant lymphoma, irrespective of the provision of clinical information, although memory at the first interpretation might have affected the intra-observer results. PMID: 29333861 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Arimoto MK, Nakamoto Y, Higashi T, Ishimori T, Ishibashi M, Togashi K Tags: Acta Radiol Source Type: research

Evaluation of an iterative model-based CT reconstruction algorithm by intra-patient comparison of standard and ultra-low-dose examinations.
Conclusion The latest generation of IR algorithms significantly improved the diagnostic image quality and provided virtually noise-free images for ultra-low-dose CT imaging. PMID: 29320863 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Noël PB, Engels S, Köhler T, Muenzel D, Franz D, Rasper M, Rummeny EJ, Dobritz M, Fingerle AA Tags: Acta Radiol Source Type: research

Diagnostic performance of static single-scan stress perfusion cardiac computed tomography in detecting hemodynamically significant coronary artery stenosis: a comparison with combined invasive coronary angiography and cardiovascular magnetic resonance-myocardial perfusion imaging.
Conclusion Static SSPCT may facilitate detection of hemodynamically significant CAD. PMID: 29320864 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Song I, Yi JG, Park JH, Kim MY, Shin JK, Ko SM Tags: Acta Radiol Source Type: research

Metal artifact reduction in CT, a phantom study: subjective and objective evaluation of four commercial metal artifact reduction algorithms when used on three different orthopedic metal implants.
Conclusion The effect of MARs varied between CT vendors and different metal implants used in orthopedic surgery. Both in subjective evaluation and objective analysis the effect of applying MARs was most obvious on steel and cobalt-chrome implants when using SEMAR from Toshiba followed by SmartMAR from GE. However, MARs may also introduce new image artifacts especially when used on titanium implants. Therefore, it is important to reconstruct all CT images containing metal with and without MARs. PMID: 29310445 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Bolstad K, Flatabø S, Aadnevik D, Dalehaug I, Vetti N Tags: Acta Radiol Source Type: research

Resting-state fMRI in primary Sj ögren syndrome.
Resting-state fMRI in primary Sjögren syndrome. Acta Radiol. 2018 Jan 01;:284185117749993 Authors: Xing W, Shi W, Leng Y, Sun X, Guan T, Liao W, Wang X Abstract Background The involvement of the central nervous system in primary Sjögren syndrome (pSS) remains controversial. Functional magnetic resonance imaging (fMRI) is a relatively new method that can be applied to investigate the heterogeneity of central nervous system (CNS) involvement in pSS patients through regional homogeneity (ReHo) analysis. Purpose To collect data from pSS patients and healthy controls, and use ReHo analysis to elu...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Xing W, Shi W, Leng Y, Sun X, Guan T, Liao W, Wang X Tags: Acta Radiol Source Type: research

Diagnostic bone imaging in patients with prostate cancer: patient experience and acceptance of NaF-PET/CT, choline-PET/CT, whole-body MRI, and bone SPECT/CT.
Conclusion Four imaging procedures were evaluated from the perspective of a selected group of prostate cancer patients. NaF-PET/CT, choline-PET/CT, WB-MRI, and bone SPECT/CT are well accepted imaging methods, and most patients prefer NaF-PET/CT. PMID: 29313360 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Dyrberg E, Larsen EL, Hendel HW, Thomsen HS Tags: Acta Radiol Source Type: research

Arterial spin labeling: a technical overview.
Abstract Arterial spin labeling (ASL) is a non-invasive magnetic resonance imaging perfusion method based on changes in net-magnetization of blood water. The absence of contrast use and ionizing radiation, renders ASL valuable in hyper-acute settings as a monitoring tool for repeated dynamical measurements during and after intervention, and for patients with known co-morbidities. This text provides a short methodological introduction to ASL and contrasts it with traditional contrast-enhanced perfusion imaging. The review focused on sequence usefulness in the clinical setting of acute cerebral ischemia investigatio...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Havsteen I, Damm Nybing J, Christensen H, Christensen AF Tags: Acta Radiol Source Type: research

Thanks.
Authors: PMID: 29099243 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - November 4, 2017 Category: Radiology Tags: Acta Radiol Source Type: research

Scientific Sessions - Oral presentations - Program Overview.
Authors: PMID: 28658968 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - June 1, 2017 Category: Radiology Tags: Acta Radiol Source Type: research

Erratum to ''Classic Papers'' in this issue of Acta Radiologica.
Authors: PMID: 28121182 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - January 27, 2017 Category: Radiology Tags: Acta Radiol Source Type: research

Non-mass breast lesions on ultrasound: final outcomes and predictors of malignancy.
Conclusion Breast NMLs on ultrasound showed high risk of malignancy. Symptoms and mammographic and ultrasound findings can be possible predictors of malignancy in NMLs. PMID: 28114809 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2017 Category: Radiology Authors: Park JW, Ko KH, Kim EK, Kuzmiak CM, Jung HK Tags: Acta Radiol Source Type: research

Intravoxel incoherent motion (IVIM) analysis of vertebral bone marrow changes after radiation exposure from diagnostic imaging and interventional procedures.
Abstract Background High cumulative radiation dose in cancer patients warrants systemic examination of possible changes in bone marrow. Purpose To assess retrospectively changes in vertebral bone marrow diffusion and perfusion using intravoxel incoherent motion diffusion-weighted imaging (IVIM-DWI) in hepatocellular carcinoma (HCC) patients after exposure to radiation from diagnostic imaging and interventional procedures. Material and Methods A total of 21 IVIM-DWI sets in 20 HCC patients, consisting of baseline and follow-up liver magnetic resonance imaging (MRI) with an interval less than 100 days, were reviewed...
Source: Acta Radiologica - January 1, 2017 Category: Radiology Authors: Yoon MA, Hong SJ, Lee CH, Kang CH, Ahn KS, Kim BH Tags: Acta Radiol Source Type: research

Radiation absorbed dose estimates for 18F-BPA PET.
Conclusion We found significant differences in organ absorbed doses for 18F-BPA against those for 18F-FDG presented in ICRP publication 106. Mean effective doses for 18F-BPA were smaller than those for 18F-FDG in the publication by 0.5-38% (mean difference, 25%). PMID: 28103709 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2017 Category: Radiology Authors: Kono Y, Kurihara H, Kawamoto H, Yasui N, Honda N, Igaki H, Itami J Tags: Acta Radiol Source Type: research

Radiography and abdominal CT compared with sacroiliac joint CT in the diagnosis of sacroiliitis.
Conclusion This study demonstrates the relevance of abdominal CT for the diagnosis of structural sacroiliitis, with good sensitivity and excellent specificity. These imaging techniques avoid unnecessary examinations. PMID: 28103710 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2017 Category: Radiology Authors: Melchior J, Azraq Y, Chary-Valckenaere I, Rat AC, Texeira P, Blum A, Loeuille D Tags: Acta Radiol Source Type: research

Magnetic resonance arthrography results that indicate surgical treatment for partial articular-sided supraspinatus tendon avulsion: a retrospective study in a tertiary center.
Abstract Background Specific findings on magnetic resonance arthrography (MRA) that indicate the need for surgery in patients with partial articular-sided supraspinatus tendon avulsion (PASTA) are not well understood. Purpose To determine which MRA findings are characteristic of patients who undergo surgery for PASTA. Material and Methods From July 2011 to February 2014, MRA findings for patients treated for PASTA were retrospectively reviewed. The patients were divided into two groups: conservative treatment and surgical repair. MRA findings were compared between the groups. The following MRA results were assesse...
Source: Acta Radiologica - January 1, 2017 Category: Radiology Authors: Hahn S, Lee YH, Chun YM, Park EH, Suh JS Tags: Acta Radiol Source Type: research

Additive value of "otosclerosis-weighted" images for the CT diagnosis of fenestral otosclerosis.
Additive value of "otosclerosis-weighted" images for the CT diagnosis of fenestral otosclerosis. Acta Radiol. 2017 Jan 01;:284185116687172 Authors: Yamashita K, Hiwatashi A, Togao O, Kondo M, Kikuchi K, Inoguchi T, Maehara J, Kyuragi Y, Honda H Abstract Background Otosclerotic foci are usually seen as minute low-density lesions and this may be attributed to relatively low sensitivity on visual assessment using computed tomography (CT). Otosclerotic foci can be detected by using the accurate region of interest (ROI) setting, while small ROI settings by less-experienced radiologists may result...
Source: Acta Radiologica - January 1, 2017 Category: Radiology Authors: Yamashita K, Hiwatashi A, Togao O, Kondo M, Kikuchi K, Inoguchi T, Maehara J, Kyuragi Y, Honda H Tags: Acta Radiol Source Type: research

Cerebral schistosomiasis: diffusion-weighted imaging helps to differentiate from brain glioma and metastasis.
Abstract Background Diffusion-weighted imaging (DWI) was introduced into clinical use some years ago. However, its use in the diagnosis of cerebral schistosomiasis has not been reported. Purpose To investigate the ability of the apparent diffusion coefficient (ADC) value of DWI in the diagnosis of cerebral schistosomiasis, and to differentiate it from brain high-grade gliomas and metastasis. Material and Methods Conventional brain MRI with pre-contrast, post-contrast, and DWI was performed on 50 cases of cerebral schistosomiasis, high-grade glioma, and brain metastasis. The ADC values of the three lesions, the pro...
Source: Acta Radiologica - January 1, 2017 Category: Radiology Authors: Huang J, Luo J, Peng J, Yang T, Zheng H, Mao C Tags: Acta Radiol Source Type: research

Development and validation of a predictor of insufficient enhancement during the hepatobiliary phase of Gd-EOB-DTPA-enhanced magnetic resonance imaging.
Abstract Background Insufficient enhancement of liver parenchyma negatively affects diagnostic accuracy of Gd-EOB-DTPA-enhanced magnetic resonance imaging (MRI). Currently, there is no reliable method for predicting insufficient enhancement during the hepatobiliary phase (HBP) in Gd-EOB-DTPA-enhanced MRI. Purpose To develop a predictor for insufficient enhancement of liver parenchyma during HBP in Gd-EOB-DTPA-enhanced MRI. Material and Methods In order to formulate a HBP enhancement test (HBP-ET), clinical factors associated with relative enhancement ratio (RER) of liver parenchyma were retrospectively determined ...
Source: Acta Radiologica - January 1, 2017 Category: Radiology Authors: Cui E, Long W, Luo L, Hu M, Huang L, Chen X Tags: Acta Radiol Source Type: research

Novel sluggish speed signs on ultrasound is indicative of hemangiomas.
Conclusion SSS showed a high sensitivity and specificity for diagnosing hemangiomas and therefore are useful diagnostic tools to supplement MRI. PMID: 28090794 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2017 Category: Radiology Authors: Furuta T, Shimose S, Nakashima Y, Kubo T, Ochi M Tags: Acta Radiol Source Type: research

Fluoroscopic-guided stent placement in failed tentative endoscopic approaches to malignant gastroduodenal obstructions.
Abstract Background Fluoroscopic or endoscopic placement of metallic stents is used as a safe, non-surgical, palliative treatment option for malignant gastroduodenal obstructions. However, endoscopic stent placement is not always feasible, due to the tight or tortuous stricture of the obstructed area and insufficient visualization of the stomach due to remnant food material. Purpose To assess the technical feasibility and clinical outcomes of fluoroscopic-guided stent placement in malignant gastroduodenal obstructions following the technical failure of endoscopic stent placement. Material and Methods In all, 19 pa...
Source: Acta Radiologica - January 1, 2017 Category: Radiology Authors: Kim SH, Song HY, Park JH, Zhou WZ, Cho YC, Shin JH, Kim JH Tags: Acta Radiol Source Type: research

Power Doppler signal calibration in the finger joint between two models of ultrasound machine: a pilot study using a phantom and joints in patients with rheumatoid arthritis.
Conclusion Signal calibration of pannus vascularity between US machines may be possible by adjusting the PRF value according to flow phantom data. Different US machines can thus provide equivalent examination results concerning the pannus vascularity. PMID: 28084811 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2017 Category: Radiology Authors: Sakano R, Saito K, Kamishima T, Nishida M, Horie T, Noguchi A, Kono M, Sutherland K, Atsumi T Tags: Acta Radiol Source Type: research

Impact of transjugular intrahepatic portosystemic shunt implantation on liver perfusion measured by volume perfusion CT.
Abstract Background Implantation of a transjugular intrahepatic portosystemic shunt (TIPS) induces changes of liver perfusion. Purpose To determine the changes in arterial, portal venous, and total perfusion of the liver parenchyma induced by TIPS using the technique of volume perfusion computed tomography (VPCT) and compare results with invasively measured hepatic intravascular pressure values. Material and Methods VPCT quantification of liver perfusion was performed in 23 patients (mean age, 62.5 ± 8.8 years) with portal hypertension in the pre-TIPS and post-TIPS setting, respectively. A com...
Source: Acta Radiologica - January 1, 2017 Category: Radiology Authors: Preibsch H, Spira D, Thaiss WM, Syha R, Nikolaou K, Ketelsen D, Lauer UM, Horger M Tags: Acta Radiol Source Type: research

MRI diagnosis of carpal boss and comparison with radiography.
Abstract Background A carpal boss is a potentially painful bony mass in the region of the second or third carpometacarpal joint. The combination of clinical examination and radiography is usually sufficient for the diagnosis. Purpose To determine whether magnetic resonance imaging (MRI) examination of the quadrangular joint can assist the diagnosis of persistent pain near a carpal boss. Material and Methods Fifty-seven patients with a carpal boss were retrospectively reviewed using MRI and conventional radiographs and compared to an asymptomatic control group. Results MRI demonstrated a variable morphology and a v...
Source: Acta Radiologica - January 1, 2017 Category: Radiology Authors: Mespreuve M, De Smet L, De Cuyper K, Waked K, Vanhoenacker F Tags: Acta Radiol Source Type: research

Feasibility of low-dose digital pulsed video-fluoroscopic swallow exams (VFSE): effects on radiation dose and image quality.
Abstract Background Fluoroscopy is a frequently used examination in clinical routine without appropriate research evaluation latest hardware and software equipment. Purpose To evaluate the feasibility of low-dose pulsed video-fluoroscopic swallowing exams (pVFSE) to reduce dose exposure in patients with swallowing disorders compared to high-resolution radiograph examinations (hrVFSE) serving as standard of reference. Material and Methods A phantom study (Alderson-Rando Phantom, 60 thermoluminescent dosimeters [TLD]) was performed for dose measurements. Acquisition parameters were as follows: (i) pVFSE: 76.7&thinsp...
Source: Acta Radiologica - January 1, 2017 Category: Radiology Authors: Weiss J, Notohamiprodjo M, Neumaier K, Li M, Flatz W, Nikolaou K, Pomschar A Tags: Acta Radiol Source Type: research

Diagnostic accuracy of diffusion restriction in intraductal papillary mucinous neoplasm of the pancreas in comparison with "high-risk stigmata" of the 2012 international consensus guidelines for prediction of the malignancy and invasiveness.
Diagnostic accuracy of diffusion restriction in intraductal papillary mucinous neoplasm of the pancreas in comparison with "high-risk stigmata" of the 2012 international consensus guidelines for prediction of the malignancy and invasiveness. Acta Radiol. 2017 Jan 01;:284185116685921 Authors: Kim M, Mi Jang K, Kim SH, Doo Song K, Jeong WK, Kang TW, Kim YK, Cha DI, Kim K, Yoo H Abstract Background It is debated whether diagnostic performance of diffusion-weighted imaging (DWI), which is widely used for detection and characterization of various malignant tumors, is comparable with high-risk sti...
Source: Acta Radiologica - January 1, 2017 Category: Radiology Authors: Kim M, Mi Jang K, Kim SH, Doo Song K, Jeong WK, Kang TW, Kim YK, Cha DI, Kim K, Yoo H Tags: Acta Radiol Source Type: research

Leg lengthening and femoral-offset reduction after total hip arthroplasty: where is the problem - stem or cup positioning?
Conclusion Post THA leg lengthening was mainly caused by improper femoral stem positioning while global FO reduction resulted from improper positioning of both the femoral stem and the acetabular cup. PMID: 28068823 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2017 Category: Radiology Authors: Al-Amiry B, Mahmood S, Krupic F, Sayed-Noor A Tags: Acta Radiol Source Type: research

Three-dimensional power Doppler ultrasound in the early assessment of response to concurrent chemo-radiotherapy for advanced cervical cancer.
Abstract Background Three-dimensional power Doppler ultrasound (3D-PDU) imaging has been widely applied to the differentiation of benign and malignant cervical lesions; however, its potential value for predicting response to chemo-radiotherapy has not been fully explored. Purpose To investigate the feasibility of 3D-PDU imaging in predicting treatment response in patients receiving concurrent chemo-radiotherapy (CCRT) for advanced cervical cancer. Material and Methods Fifty-two patients with advanced cervical cancer who received CCRT underwent 3D-PDU examinations at four timepoints: pre-therapy (baseline), 1 week ...
Source: Acta Radiologica - January 1, 2017 Category: Radiology Authors: Xu Y, Zhu L, Ru T, Wang H, He J, Zhou Z, Yang X Tags: Acta Radiol Source Type: research

Microdose acquisition in adolescent leg length discrepancy using a low-dose biplane imaging system.
Conclusion The data strongly imply that leg length measurements performed on preview images from a low-dose bi-planar imaging system are comparable to measurements performed on diagnostic images. PMID: 28068825 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2017 Category: Radiology Authors: Jensen J, Mussmann BR, Hjarbæk J, Al-Aubaidi Z, Pedersen NW, Gerke O, Torfing T Tags: Acta Radiol Source Type: research

Evaluation of neovascularization patterns in an orthotopic rat glioma model with dynamic contrast-enhanced MRI.
CONCLUSION: Our results indicate that DCE-MRI can evaluate neovascularization patterns in a glioma model. Furthermore, DCE-MRI could be an imaging biomarker for guidance of antiangiogenic treatments in humans in the future. PMID: 27956462 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - December 12, 2016 Category: Radiology Authors: Xuesong D, Wei X, Heng L, Xiao C, Shunan W, Yu G, Weiguo Z Tags: Acta Radiol Source Type: research

Internal comparison standard for abdominal diffusion-weighted imaging.
Abstract BACKGROUND: Standards for abdominal diffusion-weighted imaging (DWI), apparent diffusion coefficient (ADC) measurements, and analysis are required for reproducibility. PURPOSE: To identify optimal internal comparison standards for DWI to normalize the measured ADC for increased accuracy of differentiating malignant and benign abdominal lesions. MATERIAL AND METHODS: We retrospectively studied 97 lesions (89 patients; age, 57 ± 13 years) with histopathologically confirmed abdominal disease. Seven normal body parts/contents (normal parenchyma, spleen, kidney, gallbladder bile,...
Source: Acta Radiologica - December 12, 2016 Category: Radiology Authors: Koc Z, Erbay G, Karadeli E Tags: Acta Radiol Source Type: research

Intrahepatic distant recurrence after radiofrequency ablation for hepatocellular carcinoma: precursor nodules on pre-procedural gadoxetic acid-enhanced liver magnetic resonance imaging.
CONCLUSION: About one-third of patients with IDR after RF ablation for HCC had precursor nodules on pre-procedural gadoxetic acid-enhanced MRI, most commonly non-hypervascular hypointense nodules in the hepatobiliary phase. PMID: 27903759 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - November 30, 2016 Category: Radiology Authors: Song KD, Rhim H, Lee MW, Kim YS, Kang TW Tags: Acta Radiol Source Type: research

Bone subtraction radiography in adult patients with cystic fibrosis.
Abstract BACKGROUND: Bone subtraction radiography allows reading pulmonary changes of chest radiographs more accurately without superimposition of bones. PURPOSE: To evaluate the value of bone subtraction chest radiography using dual energy (DE) bone subtracted lung images compared to conventional radiographs (CR) in adult patients with cystic fibrosis (CF). MATERIAL AND METHODS: Forty-nine DE radiographs of 24 patients (16 men) with CF (mean age, 32 years; age range, 18-71 years) were included. Lung function tests were performed within 10 days of the radiographs. Two radiologists evaluated all CR, DE, a...
Source: Acta Radiologica - November 22, 2016 Category: Radiology Authors: Obmann VC, Christe A, Ebner L, Szucs-Farkas Z, Ott SR, Yarram S, Stranzinger E Tags: Acta Radiol Source Type: research

Simultaneous acquisition of high-contrast and quantitative liver T1 images using 3D phase-sensitive inversion recovery: a feasibility study.
CONCLUSION: PSIR may be capable of improving liver image T1 contrasts when Gd-based contrast agents are employed and simultaneously yielding accurate T1 values of abdominal organs. PMID: 27872350 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - November 21, 2016 Category: Radiology Authors: Fujiwara Y, Maruyama H, Kosaka N, Ishimori Y Tags: Acta Radiol Source Type: research

Uterine fibroid embolization with acrylamido polyvinyl microspheres: prospective 12-month clinical and MRI follow-up study.
CONCLUSION: Sixteen of the 22 patients had complete fibroid burden infarction using Bead Block microspheres (700-900 µm); however, unacceptably high insufficient fibroid burden infarction in almost one-fourth of the patients were recorded. PMID: 27872351 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - November 21, 2016 Category: Radiology Authors: Duvnjak S, Ravn P, Green A, Andersen PE Tags: Acta Radiol Source Type: research

Additional functional outcomes after endovascular treatment for intermittent claudication.
;w NE Abstract BACKGROUND: Endovascular treatment (EVT) for intermittent claudication (IC) is performed in selected patients where conservative treatment and training fail. Treatment outcomes reported in vascular registries (survival, limb-survival, and re-intervention rate) are inadequate for low-risk patients with IC. Additional measurements of blood flow reduction and functional impairment clarify the indication for treatment and facilitate outcome evaluation. PURPOSE: To analyze the additional outcome information on peripheral arterial pressures and walking capacity obtained from a local registry of EVT. ...
Source: Acta Radiologica - November 21, 2016 Category: Radiology Authors: Larsen AS, Jacobsen MB, Wesche J, Kløw NE Tags: Acta Radiol Source Type: research

Value of dynamic MRI using the Ktrans technique for assessment of native kidneys in pre-emptive renal transplantation.
an AK Abstract BACKGROUND: Different non-invasive imaging techniques such as Doppler ultrasonography and renal scintigraphy are commonly employed to assess allograft function and associated complications. However, all such methods lack sufficient specificity to discriminate between residual renal function of native kidneys. Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) evaluates signal dynamics during the passage of contrast material through the renal cortex, medulla, and collecting system. PURPOSE: To investigate the value of DCE 3T MRI using a quantitative pharmacokinetic parameter (Ktrans)...
Source: Acta Radiologica - November 18, 2016 Category: Radiology Authors: Sade R, Kantarci M, Karaca L, Okur A, Ogul H, Keles M, Çankaya E, Ayan AK Tags: Acta Radiol Source Type: research

Normal testes asymmetry evaluated by apparent diffusion coefficient and magnetization transfer ratio.
CONCLUSION: The reported differences in paired testes size was confirmed, introducing a possible relationship with structural and functional asymmetry of normal testes, based on MTR. PMID: 27856800 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - November 17, 2016 Category: Radiology Authors: Tsili AC, Ntorkou A, Giannakis D, Sofikitis N, Argyropoulou MI Tags: Acta Radiol Source Type: research

Efficacy of triamcinolone acetate and methylprednisolone acetonide for intrabursal injection after ultrasound-guided percutaneous treatment in painful shoulder calcific tendonitis: a randomized controlled trial.
CONCLUSION: Two-needle US-PICT with intrabursal steroid injection is safe and effective. The chance of reaching better scores and, even more important for a clinical perspective, of functional recovery, is higher in patients treated with TA than MA. PMID: 27856801 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - November 17, 2016 Category: Radiology Authors: Battaglia M, Guaraldi F, Gori D, Castiello E, Arvat E, Sudanese A Tags: Acta Radiol Source Type: research

Optimization of hindfoot alignment radiography.
CONCLUSION: Cobey's and Buck's techniques are the classic and popular hindfoot alignment assessment methods. The use of Buck's technique resulted in a better image with a less technical procedure and less time requirement. It is worthy of being popularized and used routinely for hindfoot radiography. PMID: 27856802 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - November 17, 2016 Category: Radiology Authors: Yang C, Xu X, Hu M, Wang B, Zhu Y, Liu J Tags: Acta Radiol Source Type: research

Tubal patency during the menstrual cycle and during treatment with hormonal contraceptives: a pilot study in women.
CONCLUSION: This pilot study supports the luteal phase of natural cycles as the optimum time for evaluation of tubal patency. The occurrence of functional occlusion of the fallopian tube on HSG examination performed during the follicular phase and following contraceptive steroid treatment supports a role of hormonal action on the utero-tubal junction. PMID: 27856803 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - November 17, 2016 Category: Radiology Authors: Jensen JT, Patil E, Seguin J, Thurmond A Tags: Acta Radiol Source Type: research