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Evaluation of median nerve by shear wave elastography and diffusion tensor imaging in carpal tunnel syndrome
Conclusion Shear-wave elastography and diffusion tensor imaging are helpful imaging modalities in diagnosing carpal tunnel syndrome and assessing its severity. (Source: European Journal of Radiology)
Source: European Journal of Radiology - February 10, 2018 Category: Radiology Source Type: research

Measurement of pediatric regional cerebral blood flow from 6 months to 15 years of age in a clinical population
Conclusion we provided values for ASL CBF in the brain, GM, WM, hemispheres, and lobes over a wide pediatric age range, approximately showing inverted U-shaped changes in GM perfusion over the course of childhood. (Source: European Journal of Radiology)
Source: European Journal of Radiology - February 7, 2018 Category: Radiology Source Type: research

Comparison of the Effect of Radiation Exposure from Dual-Energy CT versus Single-Energy CT on Double-Strand Breaks at CT Pulmonary Angiography
Conclusion DSB is increased following dual-source and single-source CTPA, while dual-source dual-energy CT protocols do not increase the estimated radiation dose and also do not result in a higher incidence of DNA DSBs in patients undergoing CTPA. (Source: European Journal of Radiology)
Source: European Journal of Radiology - February 6, 2018 Category: Radiology Source Type: research

CT-guided radiofrequency ablation in patients with aneurysmal bone cysts
Publication date: March 2018 Source:European Journal of Radiology, Volume 100 Author(s): Osama A. Zarzour, Fernando Ruiz Santiago, Nicolas Olea Serrano, Abdelkareem Hassan Abdallah, Mostafa Ahmad El-Sharkawy, Amr Farouk Mourad Introduction Aneurysmal bone cyst (ABC) is one of most therapeutic challenging lesions for orthopedic surgeons specially in large-sized lesions and lesions, which are very close to important neurovascular structures. In the present study, we express our experience in the treatment of aneurysmal bone cyst by radiofrequency thermal ablation (RFTA). Methods In the last two years, we have treated 20 cas...
Source: European Journal of Radiology - February 5, 2018 Category: Radiology Source Type: research

Influence of image reconstruction parameters on cardiovascular risk reclassification by Computed Tomography Coronary Artery Calcium Score
Conclusions Kernel, FOV, slice thickness and increment are major determinants of accuracy and precision of CACS measurement. Despite high agreement and overall good correlation of different reconstruction protocols, thinner slices thickness and increment, and sharper kernels were associated with significant upward reclassification of CV risk. Larger FOV determined both upward and downward reclassification of CV risk. (Source: European Journal of Radiology)
Source: European Journal of Radiology - February 3, 2018 Category: Radiology Source Type: research

Diagnostic accuracy of biparametric vs multiparametric MRI in clinically significant prostate cancer: Comparison between readers with different experience
Conclusion The diagnostic accuracy of a bi-parametric MR imaging protocol consisting of T2-weighted imaging and DWI is comparable with that of a standard multi-parametric imaging protocol for the detection of clinically significant prostate cancer. The experience of the reader does not significantly modify the diagnostic performance of both MR protocols. (Source: European Journal of Radiology)
Source: European Journal of Radiology - February 2, 2018 Category: Radiology Source Type: research

Diagnostic performance of coronary CT angiography with ultra-high-resolution CT: Comparison with invasive coronary angiography
Conclusions CCTA with U-HRCT demonstrated an excellent correlation and agreement with ICA in the quantification of coronary artery stenosis. (Source: European Journal of Radiology)
Source: European Journal of Radiology - February 2, 2018 Category: Radiology Source Type: research

Imaging findings of hereditary renal tumors, a review of what the radiologist should know
Publication date: Available online 2 February 2018 Source:European Journal of Radiology Author(s): Marcin Czarniecki, Rabindra Gautam, Peter L. Choyke, Baris Turkbey It is estimated that up to 8% of currently diagnosed renal cancers are part of a hereditary syndrome. The radiologist may be the first person to associate a renal tumor presenting during an imaging study to other manifestations of a hereditary syndrome. This diagnosis can have broad implications for the patient but also for other family members. This update reviews the current known associations and emerging mutations of hereditary renal cancers from a radiol...
Source: European Journal of Radiology - February 2, 2018 Category: Radiology Source Type: research

Central echogenic areas in thyroid nodules: Diagnostic performance in prediction of papillary cancer
Conclusion Despite its relatively low sensitivity, the central echogenic area finding is highly specific for papillary carcinoma of the thyroid and can be a useful sonographic finding in decisions regarding FNA. Additionally, due to the paucity of cells and high density of conglomerate fibrosis, central echogenic areas should be avoided during FNA to decrease the chance of an inadequate sample collection. (Source: European Journal of Radiology)
Source: European Journal of Radiology - February 1, 2018 Category: Radiology Source Type: research

Chest CT texture analysis for response assessment in systemic sclerosis
Conclusions Changes in CT-textural features after SCT are associated with visual CT evaluation of SSc-related lung abnormalities, but complementary provide information about therapy-induced, structural pulmonary changes. (Source: European Journal of Radiology)
Source: European Journal of Radiology - February 1, 2018 Category: Radiology Source Type: research

Correlation of Size-Dependent Conversion Factor and Body-Mass-Index using Size-Specific Dose Estimates formalism in CT examinations
Conclusion This study demonstrates that it is possible to estimate fsize by using the patients’ BMI for the torso as well as the head and knee CT, thereby enabling calculation of the probable SSDE prior to image acquisition on the basis of the presumed CTDIvol provided by the scanner. By providing information on the expected patient dose prior to image acquisition, this method is advantageous over the traditional calculation of fsize via the AP and LAT dimensions. (Source: European Journal of Radiology)
Source: European Journal of Radiology - February 1, 2018 Category: Radiology Source Type: research

Diagnosis and staging of hepatocellular carcinoma (HCC): current guidelines
Publication date: Available online 31 January 2018 Source:European Journal of Radiology Author(s): Carmen Ayuso, Jordi Rimola, Ramón Vilana, Marta Burrel, Anna Darnell, Ángeles García-Criado, Luis Bianchi, Ernest Belmonte, Carla Caparroz, Marta Barrufet, Jordi Bruix, Concepción Brú One of the key strategies to improve the prognosis of HCC, beside prevention, is to diagnose the tumor in early stages, when the patient is asymptomatic and the liver function is preserved, because in this clinical situation effective therapies with survival benefit can be applied. Imaging techniques are a key...
Source: European Journal of Radiology - February 1, 2018 Category: Radiology Source Type: research

Computed tomographic thoracic morphologic indices in normal subjects and patients with chronic obstructive pulmonary disease: Comparison with spiral CT densitometry and pulmonary function tests
Conclusions CT findings of the overexpansion of the lungs, such as increases in the vertical diameter of the lung and decreases in the transverse diameter of the heart, can be significant as indirect findings of early chronic obstructive diseases. However, despite the significant CT findings in male smokers, particularly those in their 40s, most lung function parameters were not decidedly abnormal. (Source: European Journal of Radiology)
Source: European Journal of Radiology - February 1, 2018 Category: Radiology Source Type: research

MR imaging of hepatocellular adenomas on genotype-phenotype classification: a report from China
Conclusion Both clinical and MR imaging presentation of HCA in China had some specific characteristics, and a good relationship existed between MR data and genotype-phenotype classification. Furthermore, ADC value may provide a potential indicator of malignant transformation. (Source: European Journal of Radiology)
Source: European Journal of Radiology - February 1, 2018 Category: Radiology Source Type: research

Re: Diagnostic performance of contrast-enhanced CT-scan in sinusoidal obstruction syndrome induced by chemotherapy of colorectal liver metastases: radio-pathological correlation
Publication date: Available online 31 January 2018 Source:European Journal of Radiology Author(s): Zhuo-qun Huang, Hai-fang Yang, Wei-long, Li Xu (Source: European Journal of Radiology)
Source: European Journal of Radiology - February 1, 2018 Category: Radiology Source Type: research

Combined Screening with Mammography and Ultrasound in a Population-based Screening Program
Publication date: Available online 31 January 2018 Source:European Journal of Radiology Author(s): Wolfgang Buchberger, Sabine Geiger-Gritsch, Rudolf Knapp, Kurt Gautsch, Willi Oberaigner Objectives To compare the performance of screening with mammography combined with ultrasound versus mammography alone in women at average risk for breast cancer. Methods 66,680 women underwent physician-performed ultrasound as an adjunct to screening mammography. Histological results and follow-up at one year were used as reference standard for sensitivity. Main outcome measures were cancer detection rate, sensitivity, recall rate, biops...
Source: European Journal of Radiology - February 1, 2018 Category: Radiology Source Type: research

Quantitative CT Density Histogram Values and Standardized Uptake Values of FDG-PET/CT with Respiratory Gating Can Distinguish Solid Adenocarcinomas from Squamous Cell Carcinomas of the Lung
Conclusion Quantitative CT histogram values and SUV assessment can differentiate solid lung adenocarcinomas from squamous cell carcinomas. Kurtosis and SUVmax values were strongly correlated. The addition of RG and further combination of the parameters improved the results. (Source: European Journal of Radiology)
Source: European Journal of Radiology - February 1, 2018 Category: Radiology Source Type: research

Quantitative computed tomography texture analyses for anterior mediastinal masses: Differentiation between solid masses and cysts
Conclusion Solid anterior mediastinal masses can be differentiated from cysts using quantitative CT texture analyses with moderate and high diagnostic performance in UECT and CECT, respectively. (Source: European Journal of Radiology)
Source: European Journal of Radiology - January 31, 2018 Category: Radiology Source Type: research

Quantitative computed tomography applied to interstitial lung diseases
Conclusion The HFS method, which was so far applied to a CT bone density curve analysis, is also a remarkable information extraction tool for lung density histograms. Presumably, being a principle mathematical approach, the HFS method can extract valuable health related information also from histograms from complete different areas. Graphical abstract (Source: European Journal of Radiology)
Source: European Journal of Radiology - January 31, 2018 Category: Radiology Source Type: research

Improving the prediction of lung adenocarcinoma invasive component on CT: value of a vessel removal algorithm during software segmentation of subsolid nodules
Conclusion By adding a vessel removal algorithm in software segmentation of subsolid nodules, the prediction of invasive component in lung adenocarcinomas can be improved. (Source: European Journal of Radiology)
Source: European Journal of Radiology - January 31, 2018 Category: Radiology Source Type: research

The impact of reconstruction techniques on observer performance for the detection and characterization of small pulmonary nodules in chest CT of children under 13 years
Conclusion MIP improves the detection of pulmonary nodules in chest CTs of children, but overall interreader agreement is only fair. Double reading represents a powerful tool to increase diagnostic reliability in chest CTs of children with a malignancy. Nodule characterization is best with 1 mm slices. Intrapulmonary lymph nodes occur in children with and without malignancy. (Source: European Journal of Radiology)
Source: European Journal of Radiology - January 31, 2018 Category: Radiology Source Type: research

Protruding anterior medial meniscus —An indirect sign of posterior cruciate ligament deficiency
Conclusion We found a mean PROTAMM of 3.6 mm in patients with PCL rupture. We suggest that this sign, after knee injury in an otherwise normal medial meniscus, is a promising indirect sign of PCL deficiency compared to PPS. Implementation of this sign in clinical practice may improve the sensitivity of routine non-weight bearing MRI in identifying PCL deficient knees. (Source: European Journal of Radiology)
Source: European Journal of Radiology - January 25, 2018 Category: Radiology Source Type: research

Mammography image quality and evidence based practice: Analysis of the demonstration of the inframammary angle in the digital setting
Conclusion Analysis of the demonstration of the IMA indicates clinically achievable rates (42.6%) well below that required for compliance (50%–75%) to known worldwide accreditation standards for screening mammography. These standards should be aligned to the reported evidence base. Visualisation of the IMA is impacted negatively by increasing age and compressed breast thickness but positively by breast size (PNL). (Source: European Journal of Radiology)
Source: European Journal of Radiology - January 20, 2018 Category: Radiology Source Type: research

Measurement of normal fetal cerebellar vermis at 24 –32 weeks of gestation by transabdominal ultrasound and magnetic resonance imaging: A prospective comparative study
Conclusions Visualization rates of MRI, 3D-US, and transabdominal 2D-US were decremental, MRI being superior in this regard. However, these three imaging modalities correlated well in measuring cerebellar vermis and its surroundings. (Source: European Journal of Radiology)
Source: European Journal of Radiology - January 18, 2018 Category: Radiology Source Type: research

Radiographic patterns of osteoporotic proximal humerus fractures
Conclusions Osteoporosis of the proximal humerus was identified in 72% of patients during a two year period; most of these patients were elderly females sustaining low energy trauma. These fractures showed to have specific radiographic patterns, as comminution of metaphysis and tuberosities, impaction of fragments, and inferior subluxation of the humeral head. These patterns can be assessed with the simple observation of a 2-plan view of a radiograph, without the use of specific software. Level of evidence Level III, observational study. (Source: European Journal of Radiology)
Source: European Journal of Radiology - January 15, 2018 Category: Radiology Source Type: research

Measurement of normal fetal cerebellar vermis at 24-32 weeks of gestation by transabdominal ultrasound and magnetic resonance imaging: a prospective comparative study
Conclusions Visualization rates of MRI, 3D-US, and transabdominal 2D-US were decremental, MRI being superior in this regard. However, these three imaging modalities correlated well in measuring cerebellar vermis and its surroundings. (Source: European Journal of Radiology)
Source: European Journal of Radiology - January 15, 2018 Category: Radiology Source Type: research

Comparison of Computer-Aided Detection (CADe) Capability for Pulmonary Nodules among Standard-, Reduced- and Ultra-Low-Dose CTs with and without Hybrid Type Iterative Reconstruction Technique
Conclusion The AIDR 3D has a significant positive effect on nodule detection capability of the CADe system even when radiation dose is reduced. (Source: European Journal of Radiology)
Source: European Journal of Radiology - January 15, 2018 Category: Radiology Source Type: research

Efficacy and Safety of Radiofrequency Ablation for Lung Cancers: A Systematic Review and Meta-Analysis
Conclusion In this meta-analysis, RFA was found to be a safe and efficient treatment for the patients with lung cancers. The efficacy and safety of RFA for lung cancer deserve future investigation in further well-designed randomized controlled trials. (Source: European Journal of Radiology)
Source: European Journal of Radiology - January 15, 2018 Category: Radiology Source Type: research

Image-guided percutaneous renal cryoablation: Five years experience, results and follow-up
Conclusion PRCA is solid alternative to traditional surgical therapies for treatment of small renal tumors in wide subset of patients. Medium term evidence shows excellent long-term oncological results, similar to nephrectomy, with minimal risk of major complications. (Source: European Journal of Radiology)
Source: European Journal of Radiology - January 15, 2018 Category: Radiology Source Type: research

Preoperative detection of malignant liver tumors: Comparison of 3D-T2-weighted sequences with T2-weighted turbo spin-echo and single shot T2 at 1.5  T
Conclusion 3D-T2-weighted sequences show very promising performances for the detection of liver malignant tumors compared to T2-weighted TSE sequences. (Source: European Journal of Radiology)
Source: European Journal of Radiology - January 15, 2018 Category: Radiology Source Type: research

Impact of low dose settings on radiation exposure during pediatric fluoroscopic guided interventions
Conclusion Lowering the detector entrance dose in pediatric interventional radiology procedures results in a significant decrease of the radiation dose burden. (Source: European Journal of Radiology)
Source: European Journal of Radiology - January 15, 2018 Category: Radiology Source Type: research

Yttrium-90 Radioembolization for Unresectable Metastatic Neuroendocrine Liver Tumor: A Systematic Review
Conclusions 90Y radioembolization can be used as an alternative therapy for unresectable liver metastases of NETs, with an improved survival rate and tumor response. This treatment is also effective for patients who have undergone unsuccessful TABE/TACE therapy and for the relief of symptoms in patients with carcinoid syndrome. (Source: European Journal of Radiology)
Source: European Journal of Radiology - January 9, 2018 Category: Radiology Source Type: research

Improved depiction of atherosclerotic carotid artery stenosis in virtual monoenergetic reconstructions of venous phase Dual-Layer Computed Tomography in comparison to polyenergetic reconstructions
Conclusion VMI at 40 keV reconstructed from venous phase DLCT yield an image quality equal to CT-Angiography, especially regarding vessel contrast. Perception and assessment of the carotid artery within an atherosclerotic stenosis are not impaired at low keV. (Source: European Journal of Radiology)
Source: European Journal of Radiology - January 7, 2018 Category: Radiology Source Type: research

Prognostic value of radiologically enlarged lymph nodes in patients with metastatic colorectal cancer: subgroup findings of the randomized, open-label FIRE-3/AIO KRK0306 trial
Conclusion The presence of radiologically enlarged lymph nodes in baseline staging has a negative prognostic value beyond established and potential prognostic parameters. (Source: European Journal of Radiology)
Source: European Journal of Radiology - January 6, 2018 Category: Radiology Source Type: research

Gas-induced susceptibility artefacts on diffusion-weighted MRI of the rectum at 1.5  T – Effect of applying a micro-enema to improve image quality
Conclusion Use of a preparatory micro-enema shortly before rectal EPI-DWI examinations performed at 1.5 T MRI significantly reduces both the incidence and severity of gas-induced artefacts, compared to examinations performed without bowel preparation. (Source: European Journal of Radiology)
Source: European Journal of Radiology - January 5, 2018 Category: Radiology Source Type: research

Mammography image quality and evidence based practice; analysis of the demonstration of the inframammary angle in the digital setting.
Conclusion Analysis of the demonstration of the IMA indicates clinically achievable rates (42.6%) well below that required for compliance (50%–75%) to known worldwide accreditation standards for screening mammography. These standards should be aligned to the reported evidence base. Visualisation of the IMA is impacted negatively by increasing age and compressed breast thickness but positively by breast size. (Source: European Journal of Radiology)
Source: European Journal of Radiology - January 4, 2018 Category: Radiology Source Type: research

Altered functional connectivity in post-ischemic stroke depression: a resting-state functional magnetic resonance imaging study
Conclusions Alteration of the three neural networks might be correlated with the development of PSD at the subacute phase of stroke. (Source: European Journal of Radiology)
Source: European Journal of Radiology - January 4, 2018 Category: Radiology Source Type: research

Evaluation of an automated breast volume scanner according to the fifth edition of BI-RADS for breast ultrasound compared with hand-held ultrasound
Conclusions According to the fifth BI-RADS edition, ABVS is not statistically significantly different from HHUS with regard to interobserver variability and diagnostic performance. (Source: European Journal of Radiology)
Source: European Journal of Radiology - January 4, 2018 Category: Radiology Source Type: research

Protruding anterior medial meniscus –An indirect sign of posterior cruciate ligament deficiency.
Conclusion We found a mean PROTAMM of 3.6 mm in patients with PCL rupture. We suggest that this sign, after knee injury in an otherwise normal medial meniscus, is a promising indirect sign of PCL deficiency compared to PPS. Implementation of this sign in clinical practice may improve the sensitivity of routine non-weight bearing MRI in identifying PCL deficient knees. (Source: European Journal of Radiology)
Source: European Journal of Radiology - January 1, 2018 Category: Radiology Source Type: research

Evaluation of Virtual Monoenergetic Imaging Algorithms for Dual-Energy Carotid and Intracerebral CT Angiography: Effects on Image Quality, Artefacts and Diagnostic Performance for the Detection of Stenosis
Conclusion 40-keV VMI+ showed improved quantitative image quality compared to 65-keV VMI and linearly-blended series in supraaortic DE-CTA. VMI and VMI+ provided increased suitability for carotid and intracranial artery evaluation with excellent assessment of stenosis, but did not translate into increased diagnostic performance. (Source: European Journal of Radiology)
Source: European Journal of Radiology - December 30, 2017 Category: Radiology Source Type: research

Gas-induced susceptibility artefacts on diffusion-weighted MRI of the rectum at 1.5T – Effect of applying a micro-enema to improve image quality
Conclusion Use of a preparatory micro-enema shortly before rectal EPI-DWI examinations performed at 1.5T MRI significantly reduces both the incidence and severity of gas-induced artefacts, compared to examinations performed without bowel preparation. (Source: European Journal of Radiology)
Source: European Journal of Radiology - December 28, 2017 Category: Radiology Source Type: research

Ultrasonographic appearance of ulnar nerve at different points of elbow.
Publication date: Available online 28 December 2017 Source:European Journal of Radiology Author(s): Daniele Coraci, Silvia Giovannini, Claudia Loreti, Luca Di Sante, Valter Santilli, Luca Padua (Source: European Journal of Radiology)
Source: European Journal of Radiology - December 28, 2017 Category: Radiology Source Type: research

Cholangiocarcinoma versus small liver abscess in dual source dual-energy CT quantitative parameters
Publication date: Available online 27 December 2017 Source:European Journal of Radiology Author(s): Beuy Joob (Source: European Journal of Radiology)
Source: European Journal of Radiology - December 27, 2017 Category: Radiology Source Type: research

Imaging Giant cell arteritis and Aortitis in contrast enhanced 18F-FDG PET/CT: which imaging score correlates best with laboratory inflammation markers?
Conclusions Visual and quantitative PET scores were superior to CT scores with best ICC and strongest correlations between quantitative PET score and inflammation markers especially when using vessel to liver ratios. (Source: European Journal of Radiology)
Source: European Journal of Radiology - December 27, 2017 Category: Radiology Source Type: research

Pseudoexfoliation syndrome without glaucoma: white matter abnormalities detected by conventional MRI and diffusion tensor imaging
Conclusion MRI in patients with PXS detects abnormalities in the brain and the optic tracts at a subclinical stage. Early detection of microstructural changes could be useful to guide appropriate treatment to impede the disease process. (Source: European Journal of Radiology)
Source: European Journal of Radiology - December 26, 2017 Category: Radiology Source Type: research

Value of Contrast-Enhanced Ultrasound and PET/CT in assessment of extramedullary lymphoma
Conclusion The quantitative parameters of CEUS and SUVmax of PET/CT are proven useful in assessment of different clinical and pathologic patterns of extramedullary lymphoma. (Source: European Journal of Radiology)
Source: European Journal of Radiology - December 24, 2017 Category: Radiology Source Type: research

Model for improved correlation of BMD values between abdominal routine Dual energy CT data and DXA scans
Conclusion There is a correlation between DXA BMD and DECT in non-contrast and venous contrast scans but not in arterial scans. The correlation is further improved by quantifying the degree of different confounding factors (osteoarthritis of the spine, body mass index and aortic calcium score) and taking these into account in an explanatory model. Future software solutions with DECT data as input data might be able to automatically measure the BMD in the trabecular bone as well as measuring the confounding factors automatically in order to obtain spinal DXA comparable BMD values. (Source: European Journal of Radiology)
Source: European Journal of Radiology - December 23, 2017 Category: Radiology Source Type: research

The Endovascular Management of Neurofibromatosis-associated Aneurysms: A Systematic Review
Conclusion Endovascular management is safe and effective even in hemodynamically unstable neurofibroblastoma patients at all ages. Vascular tree screening should be conducted in clinically suspicious patients to prevent fatal aneurysmal complications. A formal meta-analysis could not be performed due to the lack of randomized controlled trials. (Source: European Journal of Radiology)
Source: European Journal of Radiology - December 23, 2017 Category: Radiology Source Type: research

Cystic Renal Masses: An Imaging Update
Publication date: Available online 22 December 2017 Source:European Journal of Radiology Author(s): Ryan D. Ward, Erick M. Remer Management of incidental renal masses is in evolution. Recognition that cystic renal tumors generally act in an indolent fashion has led to less aggressive intervention. The ability of radiologists to stratify risk of malignancy, and in some cases, specify a precise diagnosis, is paramount to patient management. We review pathologies that present as cystic renal masses and how to best stratify malignancy risk. (Source: European Journal of Radiology)
Source: European Journal of Radiology - December 22, 2017 Category: Radiology Source Type: research

Pulmonary nodule detection in oncological patients – Value of respiratory-triggered, periodically rotated overlapping parallel T2-weighted imaging evaluated with PET/CT-MR
Conclusion Despite the overall lower detection rate compared with CT, the free-breathing respiratory gating T2-w sequence showed higher detectability in all evaluated categories compared to breath-hold T1–weighted MR sequences. Specifically, the T2-P was found to be not statistically different from CT in FDG-positive nodules, in detection of nodules >10mm and concerning conspicuity of pulmonary nodules. Overall, the additional time investment into T2-P seems to be justified since clinical relevant assessment of pulmonary lung nodules can mostly be done by T2-P in a whole body PET/MR staging of oncologic patien...
Source: European Journal of Radiology - December 22, 2017 Category: Radiology Source Type: research