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

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

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

The role of ARFI elastography to evaluate microstructrual changes of patients with testicular microlithiasis.
Abstract Background Testicular microlithiasis (TML) is thought to cause microstructural changes in the parenchyma of the testis, but it is difficult to demonstrate this by ultrasonography. It may be possible to evaluate microstructural changes in the testis by Acoustic Radiation Force Impulse (ARFI) elastography, which measures tissue stiffness. Purpose To assess the tissue stiffness of testicles of children with TML and to compare them with the healthy control group. Material and Methods Between November 2015 and May 2016, 25 pediatric patients with TML and 24 healthy children were enrolled in the study (mean age...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Aslan S, Ceyhan Bilgici M, Saglam D, Ozturk M Tags: Acta Radiol Source Type: research

Mid-term development of the right ventricle in competitive athletes.
stahler C Abstract Background Long-term intensive training induces physiological, morphological, and functional adaption of the athlete's heart. Purpose To evaluate the development of athlete's heart during a mid-term follow-up of competitive athletes using cardiac magnetic resonance (CMR). Material and Methods Eighteen competitive long-distance runners and triathletes (age 43 ± 13 years, 3 women) were prospectively examined in a longitudinal follow-up study 5.05 ± 0.6 years after baseline. CMR at 1.5-T was performed for functional and late gadolinium enhancement (LGE) ima...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Krumm P, Krauß S, Mangold S, Zitzelsberger T, Klumpp BD, Nikolaou K, Nieß AM, Kramer U, Burgstahler C Tags: Acta Radiol Source Type: research

68Ga-somatostatin receptor analogs and 18F-FDG PET/CT in the localization of metastatic pheochromocytomas and paragangliomas with germline mutations: a meta-analysis.
Conclusion Compared to 18F-FDG PET/CT, the 68Ga-somatostatin receptor demonstrated good performance in the localization of metastatic PCs/PGLs, especially those with germline mutations. The use of the 68Ga-somatostatin receptor can be a new tool in the diagnosis of metastatic PCs/PGLs. PMID: 29566550 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Kan Y, Zhang S, Wang W, Liu J, Yang J, Wang Z Tags: Acta Radiol Source Type: research

In  vivo MRI detection of atherosclerosis in ApoE-deficient mice by using tenascin-C-targeted USPIO.
In vivo MRI detection of atherosclerosis in ApoE-deficient mice by using tenascin-C-targeted USPIO. Acta Radiol. 2018 Jan 01;:284185118762613 Authors: Li Y, Liu J, Huang JW, Song JC, Ma ZL, Shi HB Abstract Background Atherosclerosis is the main cause of cardiovascular and cerebrovascular diseases. Non-invasive molecular imaging to detect and characterize the plaques is essential for reducing life-threatening cardiovascular events. Purpose To investigate the possibility of the anti-tenascin-C-USPIO specific probe as a molecular marker of atherosclerotic plaques detected by 7.0-T magnetic resonance...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Li Y, Liu J, Huang JW, Song JC, Ma ZL, Shi HB Tags: Acta Radiol Source Type: research

Thoracic-abdominal imaging with a novel dual-layer spectral detector CT: intra-individual comparison of image quality and radiation dose with 128-row single-energy acquisition.
Abstract Background A novel, multi-energy, dual-layer spectral detector computed tomography (SDCT) is commercially available now with the vendor's claim that it yields the same or better quality of polychromatic, conventional CT images like modern single-energy CT scanners without any radiation dose penalty. Purpose To intra-individually compare the quality of conventional polychromatic CT images acquired with a dual-layer spectral detector (SDCT) and the latest generation 128-row single-energy-detector (CT128) from the same manufacturer. Material and Methods Fifty patients underwent portal-venous phase, thoracic-...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Haneder S, Siedek F, Doerner J, Pahn G, Grosse Hokamp N, Maintz D, Wybranski C Tags: Acta Radiol Source Type: research

The retroneural approach: an alternative technique for lumbar transforaminal epidural steroid injections.
Conclusion In our population treated with LTFESIs, the retroneural approach was shown to be an effective technique, with no significant differences in pain relief following different needle-tip positions. PMID: 29523042 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Ignjatovic S, Omidi R, Kubik-Huch RA, Anderson S, Ahlhelm FJ Tags: Acta Radiol Source Type: research

Usefulness of ultrasound assessment of median nerve mobility in carpal tunnel syndrome.
Abstract Background Carpal tunnel syndrome (CTS) is the most common peripheral compression neuropathy of the upper extremity. Recently, dynamic ultrasound (US) imaging has shown differences in median nerve mobility between the affected and unaffected sides in CTS. Purpose The present study was performed to compare the median nerve mobility between patients with CTS and healthy individuals, and to correlate median nerve mobility with the severity of CTS. Material and Methods A total of 101 patients (128 wrists) with CTS and 43 healthy individuals (70 wrists) were evaluated. Electrodiagnostic studies were initially ...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Park GY, Kwon DR, Seok JI, Park DS, Cho HK Tags: Acta Radiol Source Type: research

Initial clinical results with a fusion prototype for mammography and three-dimensional ultrasound with a standard mammography system and a standard ultrasound probe.
Conclusion In conclusion, we have shown initial clinical feasibility of an US/radiography fusion prototype with good localization and evaluation of the ROIs. The combined examination was well tolerated. The simultaneous evaluation with mammography and US imaging may be able to improve detection and reduce examiner-related variability. PMID: 29498297 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Emons J, Wunderle M, Hartmann A, Radicke M, Rauh C, Uder M, Gass P, Fasching PA, Langemann H, Beckmann MW, Schulz-Wendtland R, Jud SM Tags: Acta Radiol Source Type: research

Radiation exposure during TACE procedures using additional cone-beam CT (CBCT) for guidance: safety and precautions.
r G Abstract Background During transarterial chemoembolization (TACE), cone-beam computed tomography (CBCT) can be used for tumor and feeding vessel detection as well as postembolization CT imaging. However, there will be additional radiation exposure from CBCT. Purpose To evaluate the additional dose raised through CBCT-assisted guidance in comparison to TACE procedures guided with pulsed digital subtraction angiography (DSA) alone. Material and Methods In 70 of 140 consecutive patients undergoing TACE for liver cancer, CBCT was used to facilitate the TACE. Cumulative dose area product (DAP), cumulative kerma(air...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Jonczyk M, Collettini F, Geisel D, Schnapauff D, Böning G, Wieners G, Gebauer G Tags: Acta Radiol Source Type: research

Imaging of symptomatic total knee arthroplasty with cone beam computed tomography.
Conclusion Two-dimensional (2D) CBCT scanning provides reliable and reproducible data for determining the rotation of femoral and tibial components, while showing minor overestimation of tibial component loosening. CBCT is a promising new tool for the evaluation of symptomatic knee arthroplasty patients, with a substantially lower radiation dose compared to conventional 2D multi-slice CT. PMID: 29493259 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Antti J, Juha-Sampo S, Lea N, Tarja S, Jari S, Heikki K Tags: Acta Radiol Source Type: research

Brain susceptibility changes in neurologically asymptomatic pediatric patients with Wilson's disease: evaluation with quantitative susceptibility mapping.
Abstract Background Wilson's disease (WD) is a copper metabolism disorder that causes hepatolenticular degeneration. It is important to diagnose WD before central nervous system involvement. Purpose To demonstrate the early susceptibility changes associated with the copper accumulation in the brain of neurologically asymptomatic pediatric patients with WD using quantitative susceptibility mapping (QSM). Material and Methods Twelve patients with neurologically asymptomatic WD (mean age = 13.7 ± 3.3 years) and 14 age-matched controls were prospectively examined using a 1.5-T clinic...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Saracoglu S, Gumus K, Doganay S, Koc G, Kacar Bayram A, Arslan D, Gumus H Tags: Acta Radiol Source Type: research

Subcortical nuclei in Alzheimer's disease: a volumetric and diffusion kurtosis imaging study.
Abstract Background Previous studies revealed that subcortical nuclei were harmed in the process of Alzheimer's disease (AD). Purpose To investigate the volumetric and diffusion kurtosis imaging (DKI) parameter changes of subcortical nuclei in AD and their relationship with cognitive function. Materials and Methods A total of 17 mild AD patients, 15 moderate to severe AD patients, and 16 controls underwent neuropsychological tests and magnetic resonance imaging (MRI) scans. Volume, mean kurtosis (MK), mean diffusivity (MD), and fractional anisotropy (FA) were measured in hippocampus, thalamus, caudate, putamen, pa...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Wang ML, Wei XE, Fu JL, Li W, Yu MM, Li PY, Li WB Tags: Acta Radiol Source Type: research

Percutaneous kyphoplasty for the treatment of distal lumbosacral pain caused by osteoporotic thoracolumbar vertebral fracture.
Abstract Background Kyphoplasty has been demonstrated to be minimally invasive and effective in treating osteoporotic vertebral fracture patients with back pain over the level of the fractured vertebrae. Rare studies have reported on thoracolumbar vertebral fracture patients presenting with distal lumbosacral pain (DLP). Whether kyphoplasty had a favorable therapeutic benefit for these patients remains unclear. Purpose To evaluate the therapeutic efficacy of kyphoplasty in treating osteoporotic thoracolumbar vertebral fracture (OTVF) patients with DLP and assess the clinical significance of focal tenderness to pal...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Niu J, Song D, Gan M, Liu B, Tan C, Yang H, Meng B Tags: Acta Radiol Source Type: research

Degenerative changes of the thoracic spine do exist in patients with diffuse idiopathic skeletal hyperostosis: a detailed thoracic spine CT analysis.
Abstract Background Degenerative intervertebral disease (DID) is an exclusion criterion in the Resnick and Niwayama radiographic classification for diffuse idiopathic skeletal hyperostosis (DISH). However, although DID was previously described in DISH, no systematic computed tomography (CT) analysis has been reported so far. Purpose To assess for the presence and prevalence of such changes on CT examinations of the thoracic spine of individuals with DISH. Material and Methods Intervertebral space (D1-L1) on chest CT examinations of DISH patients was retrospectively evaluated for the presence of DID. Parameters eva...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Slonimsky E, Lidar M, Stern M, Eshed I Tags: Acta Radiol Source Type: research

A comparative study of Gaussian and non-Gaussian diffusion models for differential diagnosis of prostate cancer with in-bore transrectal MR-guided biopsy as a pathological reference.
Conclusions Parameters derived from both Gaussian and non-Gaussian models could characterize prostate cancer. DKI may be advantageous than DWI for detection of prostate cancer. PMID: 29486596 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Li C, Chen M, Wan B, Yu J, Liu M, Zhang W, Wang J Tags: Acta Radiol Source Type: research

Physiological uptake of 18F-FDG in the vertebral bone marrow in healthy adults on PET/CT imaging.
Abstract Background 18F-fluorodeoxyglucose *Equal contributors. positron emission tomography/computed tomography (18F-FDG PET/CT) has proven to be a valuable imaging modality for the assessment of bone marrow condition. Purpose To investigate the physiological uptake of 18F-FDG in the vertebral bone marrow in healthy adults on PET/CT imaging, and correlate the appearance with clinical factors including gender, body mass index, and age. Material and Methods A total of 64 healthy individuals underwent PET/CT scan, and for each vertebral body, the mean and maximum standardized uptake value (SUVmean and SUVmax) were d...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Shen G, Liang M, Su M, Kuang A Tags: Acta Radiol Source Type: research

A new imaging technology to reduce the radiation dose during uterine fibroid embolization.
Abstract Background Uterine fibroid embolization (UFE) is a minimally invasive imaging-guided treatment using radiation exposure. Purpose To compare the patients' radiation exposure during UFE before and after introduction of a new X-ray imaging platform. Material and Methods Forty-one patients were enrolled in a prospective, comparative two-arm project before and after introduction of a new X-ray imaging platform with reduced dose settings, i.e. novel real-time image processing techniques (AlluraClarity). Demographic, pre-interventional imaging, and procedural data, including dose area product (DAP) and estimated...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Thomaere E, Dehairs M, Laenen A, Mehrsima A, Timmerman D, Cornelissen S, Op de Beeck K, Bosmans H, Maleux G Tags: Acta Radiol Source Type: research

Chest pain CT in the Emergency Department: evaluating the coronary arteries even when not specifically asked for?
Conclusion Of patients presenting to the ED with acute chest pain who received a chest pain CT for simultaneous evaluation of AAS and PE, 24% had further imaging for CAD within 30 days of the initial ED visit. Immediate evaluation of the coronary arteries as part of a chest pain CT should be considered here for not delaying diagnosis. PMID: 29486599 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Morsbach F, Hinzpeter R, Higashigaito K, Benz D, Manka R, Keller DI, Alkadhi H Tags: Acta Radiol Source Type: research

Utility of DWI with quantitative ADC values in ovarian tumors: a meta-analysis of diagnostic test performance.
Conclusion Quantitative ADC values could serve as useful preoperative markers for predicting the nature of ovarian tumors. Nevertheless, prospective trials focused on standardized imaging parameters are needed to evaluate the clinical value of quantitative ADC values in ovarian tumors. PMID: 29463093 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Pi S, Cao R, Qiang JW, Guo YH Tags: Acta Radiol Source Type: research

Utility of intravoxel incoherent motion magnetic resonance imaging and arterial spin labeling for recurrent glioma after bevacizumab treatment.
Conclusion Tumor progression after BEV treatment can be identified by decreasing rD. PMID: 29471670 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Miyoshi F, Shinohara Y, Kambe A, Kuya K, Murakami A, Kurosaki M, Ogawa T Tags: Acta Radiol Source Type: research

Differentiating skull base chordomas and invasive pituitary adenomas with conventional MRI.
Abstract Background It is difficult to distinguish between invasive pituitary adenomas (IPAs) and skull base chordomas based on tumor location and clinical manifestations. Purpose To investigate the value of the apparent diffusion coefficient (ADC), T2-weighted (T2W) imaging, and dynamic contrast enhancement (DCE) in differentiating skull base chordomas and IPAs. Material and Methods Data for 21 patients with skull base chordomas and 27 patients with IPAs involving the paranasal sinus were retrospectively reviewed, and all diagnoses were pathologically confirmed. Each patient underwent conventional 3.0 T ma...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Gao A, Bai J, Cheng J, Cheng X, Li S, Zhang Z, Zhang Y Tags: Acta Radiol Source Type: research

Endovascular treatment for the control of active vaginal bleeding from uterine cervical cancer treated with radiotherapy.
Conclusions Various endovascular treatment was feasible and effective to control active vaginal bleeding from cervical cancer. Repeated procedures showed commonly different bleeding foci and stent graft insertion was effective for preserving the patency of the large bleeding artery. PMID: 29448806 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Chen CS, Park S, Shin JH, Nouri Y, Kim JW, Yoon HK, Ko GY Tags: Acta Radiol Source Type: research

Breast tomosynthesis for the clarification of mammographic BI-RADS 3 lesions can decrease follow-up examinations and enables immediate cancer diagnosis.
Conclusion DBT has the potential to reduce the recall-rate of BI-RADS 3 lesions and to find and diagnose malignant lesions earlier than 2D mammography alone. PMID: 29451022 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Bahrs SD, Otto V, Hattermann V, Klumpp B, Hahn M, Nikolaou K, Siegmann-Luz K Tags: Acta Radiol Source Type: research

Mammographic screening attendance among immigrant and minority women: a systematic review and meta-analysis.
Abstract Background Groups of immigrant and minority women are more often diagnosed with advanced stage breast cancer than other women. Mammographic screening aims to reduce mortality from breast cancer through early detection in asymptomatic women. Purpose To compare mammographic screening attendance among immigrant and minority women to that of other women. Material and Methods A literature search of PubMed, Embase, Google Scholar, and Cochrane identified 1369 papers published between January 1995 and March 2016. In the review, we included 33 studies investigating mammographic screening attendance among immigran...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Bhargava S, Moen K, Qureshi SA, Hofvind S Tags: Acta Radiol Source Type: research

Sex differences in pericardial adipose tissue assessed by PET/CT and association with cardiometabolic risk.
Abstract Background Recent studies suggest that pericardial adipose tissue (PAT) is associated with whole body adiposity and insulin resistance. Moreover, the incidence of cardiovascular disease (CVD) differs between men and women. Although CVD is more prevalent in men, women suffering from CVD have a higher mortality compared to men. Differences in PAT may account for some of the observed sex differences in manifestations of CVD. Purpose To assess pericardial adipose tissue (PAT) as a biomarker for cardiometabolic risk and to assess potential sex differences. Material and Methods We studied 303 individuals (151 w...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Gill CM, Azevedo DC, Oliveira AL, Martinez-Salazar EL, Torriani M, Bredella MA Tags: Acta Radiol Source Type: research

Uterine artery embolization in a sheep model: biodegradable versus non-degradable microspheres.
Conclusion Embolization with DSM was associated with significantly higher degree of recanalization, than after embolization with TGMS. PMID: 29444587 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Keussen I, Bengtsson J, Gavier-Widén D, Karlstam E Tags: Acta Radiol Source Type: research

The effect of glioblastoma heterogeneity on survival stratification: a multimodal MR imaging texture analysis.
Conclusion All the four sequences could reflect heterogeneous distribution of GBM and thereby affect the survival stratification, especially T1W-CE and T2W sequences. However, the stratification performance using only the T1W-CE sequence can be preserved with omission of other three sequences, when investigating the effect of GBM heterogeneity on survival stratification. PMID: 29430935 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Liu Y, Zhang X, Feng N, Yin L, He Y, Xu X, Lu H Tags: Acta Radiol Source Type: research

Tailored CT angiography in follow-up after endovascular aneurysm repair (EVAR): combined dose reduction techniques.
Conclusion ASIR contributes to significant dose reduction without decisive impairments of image quality and diagnostic confidence. We recommend an adapted follow-up introducing ASIR and combined low-kV in the long-term surveillance after EVAR. PMID: 29430936 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Böning G, Rotzinger RA, Kahn JF, Freyhardt P, Renz DM, Maurer M, Streitparth F Tags: Acta Radiol Source Type: research

Removal of evidential motion-contaminated and poorly fitted image data improves IVIM diffusion MRI parameter scan-rescan reproducibility.
Conclusion Removal of motion-contaminated and/or poorly fitted image data improves IVIM parameter reproducibility. PMID: 29430937 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Chevallier O, Zhou N, He J, Loffroy R, Wáng YXJ Tags: Acta Radiol Source Type: research

Visibility of the graft hepatic artery using superb microvascular imaging in liver transplantation recipients: initial experience.
Abstract Background Hepatic artery (HA) obstruction is one of the most threatening complications following liver transplantation (LT); however, conventional color Doppler imaging (CDI) suffers from technical limitations regarding the visualization of fine vessels and low-velocity blood flow. Purpose To test the visibility of HA in postoperative evaluation of LT using a superb microvascular imaging (SMI). Material and Methods This retrospective study was approved by our institutional review board. Fifty-five consecutive patients (58 grafts; mean age = 56 years) who underwent LT with Doppler ultrasonog...
Source: Acta Radiologica - January 1, 2018 Category: Radiology Authors: Jang HY, Kim KW, Kim SY, Kim JS, Choi SH, Kim SY, Lee SG Tags: Acta Radiol Source Type: research

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