Corrigendum.
Authors: PMID: 30623666 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - January 10, 2019 Category: Radiology Tags: Acta Radiol Source Type: research

Assessing sizes of breast cancers that show non-mass enhancement on MRI based on inter-observer variability and comparison with pathology size.
CONCLUSION: The size assessments of NME breast cancer on MRI showed high correlation between observers and with pathology size. However, MRI measurements need a cautious approach because of their high overestimation rates. Measurements from early T1 images showed the highest concordance rate with pathology size. PMID: 30621441 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 8, 2019 Category: Radiology Authors: Koh J, Park AY, Ko KH, Kim S, Kyoung Jung H Tags: Acta Radiol Source Type: research

Noise reduction and image quality in ultra-high resolution computed tomography of the temporal bone using advanced modeled iterative reconstruction.
Abstract BACKGROUND: The novel advanced modeled iterative reconstruction (ADMIRE) algorithm in ultra-high-resolution (UHR) computed tomography (CT) of the temporal bone has not yet been systematically evaluated. PURPOSE: To assess the potential of ADMIRE in temporal bone UHR CT. MATERIAL AND METHODS: Forty-four patients who underwent UHR CT of the temporal bone using z-axis UHR protocol were retrospectively selected for analysis. Images were reconstructed using filtered back projection (FBP) and ADMIRE with multiple strength levels. Regions of interest were drawn in the posterior fossa and petrous bone. ...
Source: Acta Radiologica - January 8, 2019 Category: Radiology Authors: Hempel JM, Niklas Bongers M, Braun K, Ernemann U, Bier G Tags: Acta Radiol Source Type: research

Quantitative T2-mapping using MRI for detection of prostate malignancy: a systematic review of the literature.
Abstract Quantitative T2-mapping using magnetic resonance imaging (MRI) allows measurement of tissue T2-relaxation times to complement anatomical and spatial information derived from T2-weighted imaging. Studies have shown varying T2-relaxation times between prostate malignancy and non-malignant prostatic tissue. This paper aims to critically review the literature in a systematic review, to determine the usefulness of T2-mapping in the evaluation of prostate malignancy. A literature search of PubMed and Embase databases was performed. There were 17 studies, up to 31 June 2018, that measured T2-relaxation times of ...
Source: Acta Radiologica - January 8, 2019 Category: Radiology Authors: Chau Hung L Tags: Acta Radiol Source Type: research

Texture in the monitoring of regorafenib therapy in patients with colorectal liver metastases.
CONCLUSIONS: In this exploratory study, we demonstrated substantial changes in the texture parameters during treatment with regorafenib, most evident in the unfiltered dataset of the PVP-CT. Some texture parameters showed prognostic association with OS. Texture may potentially help evaluate the treatment response in patients treated with regorafenib. PMID: 30612433 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 6, 2019 Category: Radiology Authors: Andersen IR, Thorup K, Andersen MB, Olesen R, Mortensen FV, Nielsen DT, Rasmussen F Tags: Acta Radiol Source Type: research

Practice variations in salivary gland imaging and utility of virtual unenhanced dual energy CT images for the detection of major salivary gland stones.
CONCLUSION: This study confirms that there are significant variations in CT protocols used for evaluation of sialolithiasis. A single contrast-enhanced DECT acquisition with reconstruction of VUE may represent an attractive, streamlined alternative and enable the elimination of the true unenhanced phase and associated radiation exposure. PMID: 30539647 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - December 12, 2018 Category: Radiology Authors: Beland B, Levental M, Srinivasan A, Forghani R Tags: Acta Radiol Source Type: research

Intramedullary spinal tumor-like lesions.
ska M Abstract The development of magnetic resonance imaging (MRI) has led to an increasingly frequent detection of changes in the spinal cord. The most common intramedullary lesions are: demyelinating; vascular; inflammatory; infectious; and congenital, largely called tumor-like lesions. Spinal cord tumors are relatively rare, as compared with brain tumors. The hardest task is to conclude whether the spinal cord lesion is a tumor or a tumor-like lesion. This review is intended to help evaluate the spinal cord and gives an overview of the tumor-like lesions occurring in the spinal cord along with their characteris...
Source: Acta Radiologica - December 11, 2018 Category: Radiology Authors: Maj E, Wójtowicz K, Aleksandra, Podlecka-Piȩtowska, Prokopienko M, Marchel A, Rowiński O, Bekiesińska-Figatowska M Tags: Acta Radiol Source Type: research

Comparison of two-view digital breast tomosynthesis to three-view digital mammography in a simulated screening setting.
CONCLUSION: In this retrospective initial study, the detection performance of two-view DBT and three-view DM were statistically equivalent. Future studies should determine whether three-view DM is a viable alternative to DBT for screening, given its cost and work-flow. PMID: 30525870 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - December 10, 2018 Category: Radiology Authors: Kim YJ, Sechopoulos I, Newell MS, Ho CP, Holbrook AI, Fleming M, Hamlin MB, Handa P, Braykov N, D'Orsi CJ Tags: Acta Radiol Source Type: research

Lung cancer detected on coronary artery calcium scoring computed tomography: factors delaying diagnosis and predictors of survival.
Abstract BACKGROUND: Lung cancers are occasionally detected on coronary artery calcium (CAC)-scoring computed tomography (CT). However, the cause of delayed diagnosis and prognostic factors have not been studied. PURPOSE: To investigate the causes of delayed diagnosis of lung cancer in patients who undergo CAC-scoring CT and to identify predictors of mortality. MATERIAL AND METHODS: A total of 151 patients who were diagnosed with lung cancer and had undergone CAC-scoring CT from January 2010 to December 2014 were retrospectively enrolled. The reasons for delayed diagnosis were reviewed. Follow-up data on...
Source: Acta Radiologica - November 30, 2018 Category: Radiology Authors: Kim JY, Suh YJ, Nam K, Choi BW Tags: Acta Radiol Source Type: research

Alternations of interhemispheric functional connectivity in corneal ulcer patients using voxel-mirrored homotopic connectivity: a resting state fMRI study.
Abstract BACKGROUND: Corneal ulcer (CU) is the second ocular disease leading to blindness. Millions of people around the world suffer from CU. However, the relationship between CU and altered functional connectivity in the brain is still unknown. PURPOSE: The aim of the present study was to investigate the alterations of the brain interhemispheric functional connectivity (FC) in patients with CU using the voxel-mirrored homotopic connectivity (VMHC) method and their relationship with clinical manifestations. MATERIAL AND METHODS: The present study involved 24 patients with CU (12 men, 12 women) and 24 he...
Source: Acta Radiologica - November 27, 2018 Category: Radiology Authors: Shi WQ, Liu JX, Yuan Q, Ye L, Su T, Jiang N, Lin Q, Min YL, Li B, Zhu PW, Xu XW, Shao Y Tags: Acta Radiol Source Type: research

Application of whole-lesion intravoxel incoherent motion analysis using iZOOM DWI to differentiate malignant from benign thyroid nodules.
CONCLUSION: IVIM parameter D derived from iZOOM DWI may be helpful in differentiating malignant from benign thyroid nodules. PMID: 30458628 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - November 20, 2018 Category: Radiology Authors: Song MH, Jin YF, Guo JS, Zuo L, Xie H, Shi K, Yue YL Tags: Acta Radiol Source Type: research

Quantitative parameters correlated well with differentiation of squamous cell carcinoma at head and neck: a study of dynamic contrast-enhanced MRI.
Abstract BACKGROUND: Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is widely used for the diagnosis and prognostic assessment of head and neck squamous cell carcinoma (HNSCC). However, no research on grading HNSCC using DCE-MRI has been found. We hypothesize that DCE-MRI can grade the HNSCC non-invasively. PURPOSE: To verify the hypothesis that DCE-MRI can grade the HNSCC non-invasively. MATERIAL AND METHODS: Forty-two patients with histopathologically proved HNSCC from September 2013 to February 2016 were retrospectively analyzed. Chi-square test was used to compare patterns of time int...
Source: Acta Radiologica - November 20, 2018 Category: Radiology Authors: Dong Ji X, Yan S, Xia S, Guo Y, Shen W Tags: Acta Radiol Source Type: research

Outcome after prostatic artery embolization in patients with symptomatic benign prostatic hyperplasia.
CONCLUSION: PAE reduced LUTS symptoms in most patients without severe complications. The treatment did not exclude additional surgical treatment when needed. PMID: 30450921 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - November 17, 2018 Category: Radiology Authors: Kløw NE, Grøtta OJ, Bay D, Sandbæk G, Johansen TEB, Hagen T, Baco E Tags: Acta Radiol Source Type: research

Detecting impaired function of renal allografts at the early stage after transplantation using intravoxel incoherent motion imaging.
CONCLUSION: IVIM technique may be useful for detecting renal allograft dysfunction, especially combined use of cortical parameters. PMID: 30450922 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - November 17, 2018 Category: Radiology Authors: Chen L, Ren T, Zuo P, Fu Y, Xia S, Shen W Tags: Acta Radiol Source Type: research

CT perfusion and diffusion-weighted MR imaging of pancreatic adenocarcinoma: can we predict tumor grade using functional parameters?
CONCLUSION: CT-perfusion parameters and ADC values could improve preoperative assessment of pancreatic adenocarcinoma with possibility of tumor grade prediction. PMID: 30428264 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - November 14, 2018 Category: Radiology Authors: Kovač JD, Đurić-Stefanović A, Dugalić V, Lazić L, Stanisavljević D, Galun D, Mašulović D Tags: Acta Radiol Source Type: research

Geographical variations in the use of diagnostic imaging of musculoskeletal diseases in Norway.
CONCLUSION: We demonstrate a moderate to high geographical variation in the use of diagnostic imaging of the musculoskeletal system. This variation can indicate over- or underuse, which may violate basic principles of equity, priority, setting and appropriate care, and needs further attention. PMID: 30417668 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - November 11, 2018 Category: Radiology Authors: Gransjøen AM, Lysdahl KB, Hofmann BM Tags: Acta Radiol Source Type: research

Combination of the double-microcatheter technique and triaxial system in coil packing for visceral and renal artery aneurysms.
CONCLUSION: The combination of the double-microcatheter technique and triaxial system is a feasible method of coil packing for VAAs. PMID: 30396286 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - November 5, 2018 Category: Radiology Authors: Goto T, Shimohira M, Ohta K, Suzuki K, Sawada Y, Shibamoto Y Tags: Acta Radiol Source Type: research

Ultrasensitive Doppler as a tool for the diagnosis of testicular ischemia during the Valsalva maneuver: a new way to explore varicoceles?
Abstract BACKGROUND: Varicocele is among the most common causes of male infertility because of various mechanism, including hypoxia. PURPOSE: To evaluate testicular vascularization (TV) with ultrasensitive Doppler before and during the Valsalva maneuver (VM) and correlate TV changes to varicocele's spermatic venous reflux graduated by color Doppler. MATERIAL AND METHODS: From January to February 2016, 69 men (135 testis) referred for scrotal ultrasound were prospectively enrolled. An institutional review board approved the study. As gold standard, the spermatic venous reflux in the supratesticular region...
Source: Acta Radiologica - November 5, 2018 Category: Radiology Authors: Rocher L, Gennisson JL, Barranger J, Rachas A, Criton A, Izard V, Bertolloto M, Bellin MF, Correas JM Tags: Acta Radiol Source Type: research

Localization of radio-recurrence within the prostate: anti-3-18F-FACBC PET/CT compared with multiparametric MRI using histopathology as reference standard.
CONCLUSIONS: FACBC PET/CT detected fewer histological verified radio-recurrences within the prostate than mpMRI. In accordance with previous studies, we found that the limitations of FACBC PET were small tumor amounts and uptake in hyperplastic benign tissue. PMID: 30379559 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - October 31, 2018 Category: Radiology Authors: Tulipan AJ, Hole KH, Vlatkovic L, Revheim ME, Reijnen JS, Willoch F, Seierstad T, Lilleby W Tags: Acta Radiol Source Type: research

Computer-assisted detection of acute pulmonary embolism at CT pulmonary angiography in children and young adults: a diagnostic performance analysis.
Abstract BACKGROUND: To diagnose pulmonary embolism (PE) in children and adults since evaluating tiny pulmonary vasculature beyond segmental level is a challenging and demanding task with thousands of images. PURPOSE: To evaluate the effect of computer-assisted detection (CAD) on acute PE on CTPA in children and young adults by readers with varying experience levels. MATERIAL AND METHODS: Six radiologists were retrospectively divided into three groups according to experience levels and assessed the CTPA studies on a per-emboli basis. All readers identified independently the PE presence, and ranked diagno...
Source: Acta Radiologica - October 30, 2018 Category: Radiology Authors: Tang CX, Zhou CS, Schoepf UJ, Mastrodicasa D, Duguay T, Cline A, Zhao YE, Lu L, Li X, Tao SM, Lu MJ, Lu GM, Zhang LJ Tags: Acta Radiol Source Type: research

Comparison of standard-dose and half-dose dual-source abdominopelvic CT scans for evaluation of acute abdominal pain.
Abstract BACKGROUND: With the increasing number of computed tomography (CT) scans used for evaluation of acute abdominal pain, patient radiation exposure has increased rapidly. PURPOSE: To determine whether the diagnostic performance of half-dose abdominopelvic CT is non-inferior to that of standard-dose CT for patients with acute abdominal pain. MATERIAL AND METHODS: Ninety-eight patients with acute abdominal pain underwent dual-source abdominopelvic CT. Three sets of CT images were reconstructed: standard-dose filtered back projection (FBP); half-dose FBP; and half-dose sinogram-affirmed iterative reco...
Source: Acta Radiologica - October 30, 2018 Category: Radiology Authors: Lee KH, Shim YS, Park SH, Park SH, Choi SJ, Pak SY, Cheong H Tags: Acta Radiol Source Type: research

Single-center experience with six-month follow-up of FRED Jr ® flow diverters for intracranial aneurysms in small arteries.
Single-center experience with six-month follow-up of FRED Jr® flow diverters for intracranial aneurysms in small arteries. Acta Radiol. 2018 Oct 25;:284185118805266 Authors: Rautio R, Rahi M, Katila A, Rinne J Abstract BACKGROUND: The flow-diverter stent (FD) has been proven to be a safe and efficient device in the treatment of large and giant wide-necked proximal internal carotid artery aneurysms. PURPOSE: To report the outcomes using Flow Re-Direction Endoluminal Device Junior (Fred Jr) flow diverters in the treatment of aneurysms in or distal to the circle of Willis with parent artery diameter 
Source: Acta Radiologica - October 25, 2018 Category: Radiology Authors: Rautio R, Rahi M, Katila A, Rinne J Tags: Acta Radiol Source Type: research

Dynamic contrast-enhanced computed tomography as a potential biomarker in patients with metastatic colorectal cancer treated with regorafenib.
The objective response rate, when evaluating the treatment effect of regorafenib, using RECIST 1.1, is 
Source: Acta Radiologica - October 22, 2018 Category: Radiology Authors: Andersen IR, Olesen R, Boysen AK, Jensen LH, Mortensen FV, Nielsen DT, Rasmussen F Tags: Acta Radiol Source Type: research

Dynamic contrast-enhanced computed tomography in the treatment evaluation of patients with colorectal liver metastases treated with ablation: a feasibility study.
Conclusion In this exploratory feasibility study, we were not able to differentiate between the two groups (recurrence/no recurrence) using the dynamic parameters derived from the standardized circumferential VOI. In time, the method may have potential to evaluate the treatment site following ablation in an objective and standardized manner. Currently, the method needs further refinement before clinical implementation. PMID: 30335477 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - October 18, 2018 Category: Radiology Authors: Andersen IR, Thorup K, Jepsen BN, Mortensen FV, Nielsen DT, Rasmussen F Tags: Acta Radiol Source Type: research

Apparent diffusion coefficients measured using different regions of interest in differentiating borderline from malignant ovarian tumors.
Abstract Background Apparent diffusion coefficients (ADCs) measured using different regions of interest (ROIs) are widely used in differentiating ovarian tumors. Purpose To evaluate the diagnostic performance of ADCs with different ROIs in differentiating borderline ovarian tumors (BOTs) from malignant ovarian tumors (MOTs). Material and Methods Thirty-five BOTs and 54 MOTs who underwent diffusion-weighted magnetic resonance imaging (MRI) were evaluated retrospectively. ADC values were independently measured using five ROI methods: round; rectangle; hot-spot; edge drawing; and five sample ROIs. The inter- and intr...
Source: Acta Radiologica - October 18, 2018 Category: Radiology Authors: Lu JJ, Pi S, Ma FH, Zhang GF, Wei Qiang J Tags: Acta Radiol Source Type: research

Diagnostic accuracy of digital radiography for the diagnosis of osteonecrosis of the femoral head, revisited.
Conclusion Diagnostic performance of digital radiography for ONFH revealed low sensitivity and poor-to-moderate inter-reader agreement for diagnosing pre-collapse ONFH. There was no additional value of the frog-leg view. PMID: 30326729 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - October 16, 2018 Category: Radiology Authors: Chee CG, Cho J, Kang Y, Kim Y, Lee E, Lee JW, Ahn JM, Kang HS Tags: Acta Radiol Source Type: research

Assessment of uveal melanomas using advanced diffusion-weighted imaging techniques: value of reduced field of view DWI ("zoomed DWI") and readout-segmented DWI (RESOLVE).
Assessment of uveal melanomas using advanced diffusion-weighted imaging techniques: value of reduced field of view DWI ("zoomed DWI") and readout-segmented DWI (RESOLVE). Acta Radiol. 2018 Oct 15;:284185118806666 Authors: Seeger A, Batra M, Süsskind D, Ernemann U, Hauser TK Abstract Background Diffusion-weighted imaging (DWI) has become an important tool for lesion characterization. Advanced techniques of DWI may be used to improve image quality. Purpose To evaluate multi-shot segmented DWI (rs-EPI, RESOLVE) and reduced field-of view DWI (rFOV-EPI, "zoomed" EPI) in patients wi...
Source: Acta Radiologica - October 15, 2018 Category: Radiology Authors: Seeger A, Batra M, Süsskind D, Ernemann U, Hauser TK Tags: Acta Radiol Source Type: research

An audit of performance, interpretation, and influence of pretherapeutic MRI in rectal cancer: a Swedish population-based cohort study.
Conclusion Established MRI protocol standards were not universally applied. Missing data and inadequacies in original MRI reports resulted in moderate agreement between the original report and the re-evaluation indicating a risk of inappropriate treatment selection. The results call for further educational efforts in rectal cancer MRI acquisition and repeated audits of image protocol adherence and interpretation quality. PMID: 30322292 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - October 15, 2018 Category: Radiology Authors: Elliot AH, Blomqvist L, Sigurdsson A, Martling A, Johansson H, Glimelius B, Nilsson PJ Tags: Acta Radiol Source Type: research

Quantifying the angiogenesis of C6 glioma in rats based on CT quantitative parameters.
Abstract Background Glioma is the most common neoplasm that is neuroepithelial in nature. However, Spectral computed tomography (CT) has rarely been reported to detect angiogenesis in tumors. Purpose To investigate the value of multi-parameter spectral CT for the detection of angiogenesis in C6 glioma in rats. Material and Methods Fifteen male Wistar rats were seeded with C6 glioma cells in the right basal ganglia and spectral CT-enhanced scanning was performed at days 7, 10, and 14 after the C6 glioma cells were seeded. The spectral CT parameters were measured in three areas: the solid tumor; the peritumoral area...
Source: Acta Radiologica - October 15, 2018 Category: Radiology Authors: Huang X, Liang X, Zhang Q, Wang D, Liu J, Zhang L, Zhou J Tags: Acta Radiol Source Type: research

Preoperative CT of cardiac veins for planning left ventricular lead placement in cardiac resynchronization therapy.
Conclusion In CRT patients, MDCT can be used for preoperative mapping of the cardiac veins to assess availability of suitable veins in potential target segments for pacemaker-lead placement. Using the 17-segment plot of the left ventricle may improve the clinical usefulness of the data. PMID: 30304945 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - October 10, 2018 Category: Radiology Authors: Markstad H, Bakos Z, Ostenfeld E, Geijer M, Carlsson M, Borgquist R Tags: Acta Radiol Source Type: research

Morphological and functional features prognostic factor of magnetic resonance imaging in locally advanced rectal cancer.
Conclusions Lesion vascularization and lymph node number had a predictive value for neoadjuvant treatment complete response in rectal cancer. T2W signal intensity and DWI signal showed a good predictive value for local rectal recurrences. PMID: 30286607 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - October 4, 2018 Category: Radiology Authors: Fusco R, Granata V, Rega D, Russo C, Pace U, Pecori B, Tatangelo F, Botti G, Izzo F, Cascella M, Avallone A, Delrio P, Petrillo A Tags: Acta Radiol Source Type: research

Does the menstrual cycle affect the multimodal ultrasound tomography?
Conclusion Although there are biological changes in breast tissue properties during the MC, we did not observe statistically significant changes in the average values of MUT refractivity and attenuation images in each breast for different weeks of the MC. This finding implies that the diagnostic accuracy of the MUT may not be affected by the timing of the scan during the MC. PMID: 30282480 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - October 3, 2018 Category: Radiology Authors: Forte S, Dellas S, Stieltjes B, Bongartz G Tags: Acta Radiol Source Type: research

Arterial embolization for hemoptysis in patients with chronic pulmonary tuberculosis and in patients with bronchiectasis.
Abstract Background Previous studies suggest that recurrence of hemoptysis after arterial embolization is associated with the underlying pulmonary disease. Purpose To compare the baseline information and imaging findings in patients with hemoptysis due to either chronic pulmonary tuberculosis (PTB) or bronchiectasis and to identify predictors of rebleeding after embolization treatment. Material and Methods Clinical data of all consecutive chronic PTB and bronchiectasis patients who underwent arterial embolization for hemoptysis from January 2010 to January 2017 in a single center were reviewed. Baseline clinical i...
Source: Acta Radiologica - October 3, 2018 Category: Radiology Authors: Lu GD, Zhang JX, Zhou CG, Xia JG, Liu S, Zu QQ, Shi HB Tags: Acta Radiol Source Type: research

The nerve root sedimentation sign in diagnosis of lumbar spinal stenosis.
Conclusion The nerve root sedimentation is a useful tool for identification of patients with both severe clinical and morphological lumbar spinal stenosis; however, its performance in the diagnosis of patients with moderate morphological spinal stenosis is poor. PMID: 30282482 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - October 3, 2018 Category: Radiology Authors: Piechota M, Król R, Elias DA, Wawrzynek W, Lekstan A Tags: Acta Radiol Source Type: research

Evaluation of early treatment response to radiotherapy for HCC using pre- and post-treatment MRI.
Abstract Background Stereotactic body radiation therapy is an emerging treatment option for patients with unresectable advanced hepatocellular carcinoma (HCC). Because liver parenchyma neighboring the tumor is unavoidably exposed to irradiation, evaluation of treatment response following radiotherapy for HCC is challenging due to increased peritumoral arterial hyperemia and delayed clearance of contrast agent in the tumor. Purpose To explore which change of magnetic resonance imaging (MRI) features between pre- and post-radiotherapy could help evaluate viability of HCC. Material and Methods Thirty-nine patients wh...
Source: Acta Radiologica - October 3, 2018 Category: Radiology Authors: Song SH, Jeong WK, Choi D, Kim YK, Park HC, Yu JI Tags: Acta Radiol Source Type: research

Detection of axillary lymph node recurrence in patients with personal history of breast cancer treated with sentinel lymph node biopsy (SLNB): results of postoperative combined ultrasound and mammography screening over five consecutive years.
Conclusion Axillary recurrence was very rare in patient who underwent SLNB; additional axillary scanning did not provide axillary recurrence detection, but only increased the number of false-positive recalls and biopsies. PMID: 30282484 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - October 3, 2018 Category: Radiology Authors: Kwon BR, Chang JM, Lee J, Shin SU, Lee SH, Cho N, Moon WK Tags: Acta Radiol Source Type: research

Preliminary study of using diffusion kurtosis imaging for characterizing parotid gland tumors.
Abstract Background Diffusion kurtosis imaging (DKI) is a technique based on the theory that the diffusion of water follows non-Gaussian distribution; until now, few studies have explored the usefulness of DKI in differentiating parotid gland tumors. Purpose To evaluate the potential of DKI in the characterization of parotid gland tumors. Material and Methods DKI was performed in 40 patients with parotid gland tumors (33 benign, 7 malignant). DKI parameters including apparent diffusion coefficient (Dapp) and apparent kurtosis coefficient (Kapp) were obtained using the DK model and compared. Intraclass correlation ...
Source: Acta Radiologica - September 27, 2018 Category: Radiology Authors: Qian W, Xu XQ, Zhu LN, Ma G, Su GY, Bu SS, Wu FY Tags: Acta Radiol Source Type: research

Safety of gadobutrol: results of a non-interventional study of 3710 patients, including 404 children.
Conclusion This non-interventional study in 3710 patients confirmed gadobutrol as a safe and reliable contrast agent in adults and children. PMID: 30253660 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - September 25, 2018 Category: Radiology Authors: Glutig K, Hahn G, Kuvvetli P, Endrikat J Tags: Acta Radiol Source Type: research

Low-dose non-contrast examination of the temporal bone using volumetric 320-row computed tomography.
Abstract Background 320-row volume computed tomography (CT) allows CT dose to be reduced while maintaining image quality. Purpose To evaluate image quality of low-dose non-contrast temporal bone CT using single volumetric 320-row multidetector CT technique. Material and Methods A total of 125 patients were included in our study. Two low-dose protocols, including 135 kV tube voltage with 5 mAs tube current and 80 kV tube voltage with 5 mAs tube current, were chosen based on results of present phantom study. For evaluating subjective image quality, conspicuity of anatomic landmarks were assigned a score using a five...
Source: Acta Radiologica - September 24, 2018 Category: Radiology Authors: Pirimoglu B, Sade R, Sakat MS, Polat G, Kantarci M Tags: Acta Radiol Source Type: research

The relationship between calcium (water) density and age distribution in adult women with spectral CT: initial result compared to bone mineral density by dual-energy X-ray absorptiometry.
Conclusions The DCa(Wa) of lumbar vertebra by spectral CT demonstrated similar age distribution as BMD of DXA and could be used as a method of measuring the vertebral bone mineral density in adult women. PMID: 30249113 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - September 24, 2018 Category: Radiology Authors: Yue D, Li Fei S, Jing C, Ru Xin W, Rui Tong D, Ai Lian L, Luo YH Tags: Acta Radiol Source Type: research

Intravoxel incoherent motion imaging in monitoring the function of kidney allograft.
Abstract Background Non-invasive alternatives to percutaneous renal biopsy are sought for follow-up of renal allografts. Purpose To evaluate the feasibility of intravoxel incoherent motion (IVIM) imaging in monitoring and predicting the function of renal allografts. Material and Methods Thirty-five kidney recipients were examined on a 1.5-T MR unit approximately three and 18 months after transplantation. Based on estimated glomerular filtration rate (eGFR), patients were divided into three groups: improved; declined; and stable graft function. Diffusion parameters were calculated with the use of monoexponential (t...
Source: Acta Radiologica - September 23, 2018 Category: Radiology Authors: Sulkowska K, Palczewski P, Wojcik D, Ciszek M, Sanko-Resmer J, Wojtowicz J, Leszkiewicz M, Golebiowski M Tags: Acta Radiol Source Type: research

Intergrating conventional MRI, texture analysis of dynamic contrast-enhanced MRI, and susceptibility weighted imaging for glioma grading.
Abstract Background The application of conventional magnetic resonance imaging (MRI) in glioma grading is limited and non-specific. Purpose To investigate the application values of MRI, texture analysis (TA) of dynamic contrast-enhanced MRI (DCE-MRI) and intratumoral susceptibility signal (ITSS) on susceptibility weighted imaging (SWI), alone and in combination, for glioma grading. Material and Methods Fifty-two patients with pathologically confirmed gliomas who underwent DCE-MRI and SWI were enrolled in this retrospective study. Conventional MRIs were evaluated by the VASARI scoring system. TA of DCE-MRI-derived ...
Source: Acta Radiologica - September 23, 2018 Category: Radiology Authors: Su CQ, Lu SS, Han QY, Zhou MD, Hong XN Tags: Acta Radiol Source Type: research

Radiation treatment monitoring with DCE-US in CWR22 prostate tumor xenografts.
Abstract Background Longitudinal monitoring of potential radiotherapy treatment effects can be determined by dynamic contrast-enhanced ultrasound (DCE-US). Purpose To assess functional parameters by means of DCE-US in a murine subcutaneous model of human prostate cancer, and their relationship to dose deposition and time-frame after treatment. A special focus has been placed to evaluate the vascular heterogeneity of the tumor and on the most suitable data analysis approach that reflects this heterogeneity. Material and Methods In vivo DCE-US was acquired 24 h and 48 h after radiation treatment with a single dose o...
Source: Acta Radiologica - September 19, 2018 Category: Radiology Authors: Arteaga-Marrero N, Mainou-Gomez JF, Brekke Rygh C, Lutay N, Roehrich D, Reed RK, Olsen DR Tags: Acta Radiol Source Type: research

Hepatic enhancement differences when dosing iodinated contrast media according to total versus lean body weight.
Conclusion With CM dose constant, LBW dosing yielded a higher magnitude in MHE but did not reduce inter-patient variability. PMID: 30227724 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - September 18, 2018 Category: Radiology Authors: Peet K, Clarke SE, Costa AF Tags: Acta Radiol Source Type: research

Acute and delayed effects of concentric and eccentric exercise on quantitative muscle MRI.
Conclusions Longitudinal effects of concentric and eccentric exercise can be detected by both T2 and MTR, but T2 is more sensitive to subtle alterations. PMID: 30227725 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - September 18, 2018 Category: Radiology Authors: Nagy SA, Váczi M, Perlaki G, Orsi G, Illés Z, Bogner P Tags: Acta Radiol Source Type: research

RadCases: Interventional Radiology Ferral H Lorenz JM (eds.), RadCases: Interventional Radiology. Thieme: Stuttgart, 2018; 253 pp.: ISBN 978-1-62623-282-2, €59.99 (pbk).
RadCases: Interventional Radiology Ferral H Lorenz JM (eds.), RadCases: Interventional Radiology. Thieme: Stuttgart, 2018; 253 pp.: ISBN 978-1-62623-282-2, €59.99 (pbk). Acta Radiol. 2018 Sep 14;:284185118800002 Authors: Koskinen SK PMID: 30217114 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - September 14, 2018 Category: Radiology Authors: Koskinen SK Tags: Acta Radiol Source Type: research

ALBI and P-ALBI grade in Child-Pugh A patients treated with drug eluting embolic chemoembolization for hepatocellular carcinoma.
rg EJ Abstract Background Treatment outcome for hepatocellular carcinoma (HCC) is related to tumor burden and liver function. Grading systems assessing liver function need validation in different clinical settings. Purpose To evaluate drug-eluting embolic transarterial chemoembolization (DEE-TACE) in Child-Pugh A HCC with respect to albumin-bilirubin (ALBI) and platelet-albumin-bilirubin (P-ALBI) grade. Material and Methods Forty-nine patients with Child-Pugh class A, diagnosed with HCC and allocated to DEE-TACE treatment, were retrospectively analyzed regarding tumor and treatment characteristics, radiological re...
Source: Acta Radiologica - September 11, 2018 Category: Radiology Authors: Carling U, Røsok B, Line PD, Dorenberg EJ Tags: Acta Radiol Source Type: research

Flow Diversion of Cerebral Aneursyms Park M Taussky P Albuquerque FC McDougall CG , Flow Diversion of Cerebral Aneurysms , Thieme: Stuttgart, 2017; 176 pp.: ISBN 978-162623-777-3, €139.99/$149.99 (hbk).
Flow Diversion of Cerebral Aneursyms Park M Taussky P Albuquerque FC McDougall CG , Flow Diversion of Cerebral Aneurysms , Thieme: Stuttgart, 2017; 176 pp.: ISBN 978-162623-777-3, €139.99/$149.99 (hbk). Acta Radiol. 2018 Sep 11;:284185118800012 Authors: Sui B PMID: 30205702 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - September 11, 2018 Category: Radiology Authors: Sui B Tags: Acta Radiol Source Type: research

Incidence and risk factors of facet joint violation following percutaneous kyphoplasty for osteoporotic vertebral compression fractures.
Abstract Background Percutaneous kyphoplasty (PKP) has been widely used to osteoporotic vertebral compression fractures (OVCFs). No previous investigations have reported the incidence and risk factors of facet joint violation (FJV) caused by PKP. Purpose To determine the incidence and risk factors of FJV following PKP in patients with OVCFs. Material and Methods We reviewed a total of 153 patients who underwent bilateral PKP. Postoperative computed tomography (CT) scans were assessed to determine the degree of FJV owing to invasion by a puncture trocar. Clinical outcomes, including visual analogue scale (VAS) scor...
Source: Acta Radiologica - September 11, 2018 Category: Radiology Authors: Li Y, Wang X, Jiang K, Chen J, Lin Y, Wu Y Tags: Acta Radiol Source Type: research

In vitro T2 relaxivities of the Gd-based contrast agents (GBCAs) in human blood at 1.5 and 3 T.
Conclusion The r2 values at 1.5 and 3 T, determined for the eight GBCAs still clinically available (other than in Europe), provide a definitive baseline for future evaluations, including theoretical calculations of signal intensity and their clinical impact on T2-weighted scans. PMID: 30205704 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - September 11, 2018 Category: Radiology Authors: Shen Y, Goerner FL, Heverhagen JT, Snyder C, Hu D, Li X, Runge VM Tags: Acta Radiol Source Type: research