A study of clinical complications and risk factors in 1001 native and transplant kidney biopsies in Sweden.
CONCLUSION: The present findings motivate greater attention being paid to the risk of major side-effects after right-side biopsies from women's kidneys, as well as after biopsies from younger patients and patients with lower BMI. PMID: 24068748 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - September 25, 2013 Category: Radiology Authors: Peters B, Andersson Y, Stegmayr B, Mölne J, Jensen G, Dahlberg P, Holm-Gunnarsson I, Ekberg J, Bjurström K, Haux SB, Hadimeri H Tags: Acta Radiol Source Type: research

Superior vena cava (SVC) filters placed over central lines - analysis of line trapping and difficulties with line retrieval: an in-vitro experimental study.
CONCLUSION: When SVC filters are placed over existing central lines, the risk of catheter entrapment is very low in this in-vitro model. Filter migration during line retrieval was only observed when the OptEase filter was placed over>10 Fr caliber lines. PMID: 24068749 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - September 25, 2013 Category: Radiology Authors: Lopera JE, Shapiro M, Sanchez D, Maya C, Kroma G, Garza-Berlanga A, Suri R Tags: Acta Radiol Source Type: research

Comparison of USPIO-enhanced MRI and Gd-DTPA enhancement during the subacute stage of focal cerebral ischemia in rats.
CONCLUSION: After focal cerebral ischemia, Gd-DTPA-enhanced MRI showed a higher sensitivity in detecting BBB alterations than did USPIO enhancement. USPIO provided complementary information regarding inflammatory cell activity in neuroinflammatory to cerebral ischemia that had not been visualized using conventional Gd-DTPA. The assessment using multiple MR parameters may identify intracellular and extracellular USPIO in vivo. PMID: 24065200 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - September 24, 2013 Category: Radiology Authors: Yang YM, Feng X, Yin LK, Li CC, Jia J, Du ZG Tags: Acta Radiol Source Type: research

64-section multidetector CT angiography for evaluation of intracranial aneurysms: comparison with 3D rotational angiography.
CONCLUSION: Compared with the new gold standard 3D DSA, 64-section CTA offers high sensitivity and specificity for detection of intracranial aneurysms. It could be readily used as a screening imaging method for detection of intracranial aneurysms. PMID: 24065201 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - September 24, 2013 Category: Radiology Authors: Li Q, Lv F, Yao G, Li Y, Xie P Tags: Acta Radiol Source Type: research

The use of contrast-enhanced ultrasound in blunt abdominal trauma: advantages and limitations.
Abstract Computed tomography (CT) is the imaging method of choice in the assessment of multiple trauma patients. However, in patients who suffered from low-energy abdominal trauma, the use of CT is controversial, since the probability of injury is low and therefore most of the studies are normal. Thus, conventional US imaging has increasingly been employed as the initial imaging modality in the work-up of minor traumatic emergency condition. More recently, the introduction of a new contrast-enhanced ultrasound (CEUS) technique, using second-generation ultrasound contrast agents, has led to a notable increase in th...
Source: Acta Radiologica - September 23, 2013 Category: Radiology Authors: Pinto F, Miele V, Scaglione M, Pinto A Tags: Acta Radiol Source Type: research

Ultrasound assessment of the elbow joint in infants and toddlers and its clinical significance.
Abstract BACKGROUND: Ultrasound can be used for the diagnosis of elbow injuries in infants and toddlers. However, ultrasound is highly operator-dependent and accurate ultrasound examinations require a complete understanding of the complex anatomy of the elbow joint. PURPOSE: To report the normal ultrasound anatomy of the elbow, particularly of the humeroulnar joint, in infants and toddlers. MATERIAL AND METHOD: Thirty subjects aged
Source: Acta Radiologica - September 23, 2013 Category: Radiology Authors: Shen XT, Zhou ZG, Yu LS, Wu X, Chen XL, Xu Y, Sun J Tags: Acta Radiol Source Type: research

Emergency room decision-making for urgent cranial computed tomography: selection criteria for subsets of non-trauma patients.
CONCLUSION: Although 100% sensitivity was not achieved, our results may contribute to the evidence that in the absence of focal neurologic deficit, headache with vomiting or altered mental status in patients aged
Source: Acta Radiologica - September 23, 2013 Category: Radiology Authors: Tung C, Lindgren A, Siemund R, van Westen D Tags: Acta Radiol Source Type: research

Comparison of patient comfort between iodixanol and iopamidol in contrast-enhanced computed tomography of the abdomen and pelvis: a randomized trial.
Abstract BACKGROUND: Previous clinical studies have shown that iso-osmolar iodixanol (Visipaque®) causes less patient discomfort than low-osmolar contrast media (LOCM) when administered via intra-arterial injection. No data are available comparing these agents for patient discomfort when administered intravenously (i.v.) using power injectors. PURPOSE: To compare the frequency and intensity of patient discomfort between iodixanol and iopamidol (Isovue®) administered i.v. using a power injector in contrast-enhanced computed tomography (CECT) of the abdomen and pelvis. MATERIAL AND METHODS: This wa...
Source: Acta Radiologica - September 23, 2013 Category: Radiology Authors: Weiland FL, Marti-Bonmati L, Lim L, Becker HC Tags: Acta Radiol Source Type: research

Upper urinary tract tumors: how does the contrast enhancement measured in a split-bolus CTU correlate to histological staging?
CONCLUSION: A split-bolus CTU cannot distinguish between invasive and non-invasive urothelial tumors in the upper urinary tract, but the examination is useful to diagnose a tumor in the renal pelvis and the ureter. PMID: 24056890 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - September 20, 2013 Category: Radiology Authors: Gandrup KL, Nordling J, Balslev I, Thomsen HS Tags: Acta Radiol Source Type: research

Single dose ivabradine versus intravenous metoprolol for heart rate reduction before coronary computed tomography angiography (CCTA) in patients receiving long-term calcium channel-blocker therapy.
k I, Atasoy I Abstract BACKGROUND: In patients with contraindication for beta-blockers who are also under long-term calcium channel-blocker therapy for any reason, ivabradine may be used as an alternative treatment to achieve the target heart rate. PURPOSE: To assess whether single dose oral ivabradine in patients referred for coronary computed tomography angiography (CCTA) is safe and can significantly decrease heart rate compared to intravenous (i.v.) metoprolol in patients receiving long-term calcium channel-blocker therapy. MATERIAL AND METHODS: One-hundred and twenty patients who were under calcium ...
Source: Acta Radiologica - September 19, 2013 Category: Radiology Authors: Celik O, Atasoy M, Ertürk M, Yalçin A, Aksu H, Diker M, Aktürk I, Atasoy I Tags: Acta Radiol Source Type: research

Effect of surgery on periventricular white matter in normal pressure hydrocephalus patients: comparison of two methods of DTI analysis.
ent O Abstract BACKGROUND: Diffusion tensor imaging (DTI) is a useful tool for assessing changes that occur in microstructures. We have developed a novel method for region of interest (ROI) delineation in the assessment of DTI parameters in patients with normal pressure hydrocephalus (NPH). PURPOSE: To compare the standard method and our novel method in an evaluation of the impact of surgery on periventricular white matter in patients with NPH. MATERIAL AND METHODS: Ten patients with NPH underwent 3T magnetic resonance imaging (MRI; including 12-direction DTI sequences) before and after surgery. We recor...
Source: Acta Radiologica - September 16, 2013 Category: Radiology Authors: Nicot B, Bouzerar R, Gondry-Jouet C, Capel C, Peltier J, Fichten A, Balédent O Tags: Acta Radiol Source Type: research

Safety and tolerability of iopromide intravascular use: a pooled analysis of three non-interventional studies in 132,012 patients.
Abstract BACKGROUND: Determining the safety of contrast agents is challenging. In the absence of large controlled clinical trials, non-interventional (post-marketing surveillance) studies provide an opportunity to clearly investigate the safety profile of contrast agents. PURPOSE: To assess the safety profile of iopromide in contrast-enhanced X-ray in clinical practice, using pooled data from three non-interventional studies. MATERIAL AND METHODS: All studies were international, multicenter, non-interventional studies examining iopromide tolerability in clinical practice. Patients received iopromide (iod...
Source: Acta Radiologica - September 16, 2013 Category: Radiology Authors: Palkowitsch PK, Bostelmann S, Lengsfeld P Tags: Acta Radiol Source Type: research

The diagnostic sensitivity of dynamic contrast-enhanced magnetic resonance imaging and breast-specific gamma imaging in women with calcified and non-calcified DCIS.
CONCLUSION: MRI showed a higher sensitivity for the detection of calcified and non-calcified DCIS and is more helpful than BSGI in cases without microcalcifications on mammography. PMID: 24043881 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - September 16, 2013 Category: Radiology Authors: Kim JS, Lee SM, Cha ES Tags: Acta Radiol Source Type: research

Diffusion tensor imaging of cysts, hemangiomas, and metastases of the liver.
CONCLUSION: Fa values may play a supportive role in the imaging of liver lesions. Whereas metastases tend to have low ADCs and high Fa values, cysts have high ADCs and low Fa values and hemangiomas have high ADCs and high Fa values. PMID: 24043882 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - September 16, 2013 Category: Radiology Authors: Erturk SM, Ichikawa T, Kaya E, Yapici O, Ozel A, Mahmutoglu AS, Basak M Tags: Acta Radiol Source Type: research

Hemodynamics in rat liver tumor model during retrograde-outflow isolated hepatic perfusion with aspiration from the portal vein: angiography and in vivo microscopy.
Abstract BACKGROUND: Orthograde percutaneous isolated hepatic perfusion (IHP) techniques using balloon occlusion catheters are relatively simple and facilitate repeated therapy, but they result in higher rates of leakage from the perfusion circuit into the systemic circulation. Therefore, a feasible protocol for percutaneous IHP with less leakage is required. PURPOSE: To investigate hemodynamic changes in rat liver and tumor during retrograde-outflow isolated hepatic perfusion (R-IHP) with aspiration from the portal vein (PV). MATERIAL AND METHODS: Animal experiments were approved by the Animal Experimen...
Source: Acta Radiologica - September 14, 2013 Category: Radiology Authors: Murata S, Jeppsson B, Lunderquist A, Ivancev K Tags: Acta Radiol Source Type: research

Localization and prediction of malignant potential in recurrent pheochromocytoma/paraganglioma (PCC/PGL) using 18F-FDG PET/CT.
Abstract BACKGROUND: To our knowledge, data are lacking on the role of 18F-FDG PET/CT in the localization and prediction of neuroendocrine tumors, in particular the pheochromocytoma/paraganglioma (PCC/PGL) group. PURPOSE: To evaluate the role of 18F-FDG PET/CT in localizing and predicting the malignant potential of PCC/PGL. MATERIAL AND METHODS: Twenty-three consecutive patients with a history of PCC/PGL, presenting with symptoms related to catecholamine excess, underwent 18F-FDG PET/CT. Final confirmation of the diagnosis was made using the composite references. PET/CT findings were analyzed on a per-le...
Source: Acta Radiologica - September 14, 2013 Category: Radiology Authors: Saad FF, Kroiss A, Ahmad Z, Zanariah H, Lau W, Uprimny C, Donnemiller E, Kendler D, Nordin A, Virgolini I Tags: Acta Radiol Source Type: research

Progressive decrease of N-acetylaspartate to total creatine ratio in the pregenual anterior cingulate cortex in patients with major depressive disorder: longitudinal 1H-MR spectroscopy study.
CONCLUSION: A progressive decrease in the NAA/tCr ratio in the pACC of patients with MDD was demonstrated and the decrease in this ratio was at the highest rate in the early period after illness onset. These findings indicate the neuronal degeneration and dysfunction of the pACC, and the importance of early clinical intervention in female patients with MDD. PMID: 24031048 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - September 12, 2013 Category: Radiology Authors: Tae WS, Kim SS, Lee KU, Nam EC, Koh SH Tags: Acta Radiol Source Type: research

Coronary computed tomography angiography at 140 kV versus 120 kV: assessment of image quality and radiation exposure in overweight and moderately obese patients.
Abstract BACKGROUND: Although a tube potential of 140 kV is available on most computed tomography (CT) scanners, its incremental diagnostic value versus 120 kV has been controversial. PURPOSE: To retrospectively evaluate the image quality and radiation exposure of cardiac computed tomography angiography (CCTA) performed at 140 kV in comparison to CCTA at 120 kV in overweight and moderately obese patients. MATERIAL AND METHODS: Eighty-eight patients who were referred for CCTA between January 2010 and May 2012 were included. Forty-four patients who were overweight or moderately ...
Source: Acta Radiologica - September 12, 2013 Category: Radiology Authors: Lee AM, Engel LC, Hui GC, Liew G, Ferencik M, Sidhu MS, Hoffmann U, Ghoshhajra BB Tags: Acta Radiol Source Type: research

Comparison of computer tomographic volumetry versus nuclear split renal function to determine residual renal function after living kidney donation.
Abstract BACKGROUND: Living-donor kidney transplantation is an established practice. Traditionally a combination of renal scintigram and computed tomography (CT) is used to select the kidney that is to be harvested in each donor. PURPOSE: To evaluate the ability of split renal volume (SRV) calculated from volumetric examination of CT images compared to nuclear split renal function (nSRF) derived from gamma camera scintigram to predict donor residual single kidney function after donor nephrectomy. MATERIAL AND METHODS: This pilot study comprised a retrospective analysis of CT images and renal scintigrams ...
Source: Acta Radiologica - September 6, 2013 Category: Radiology Authors: Patankar K, Low RS, Blakeway D, Ferrari P Tags: Acta Radiol Source Type: research

Digital breast tomosynthesis versus full-field digital mammography: comparison of the accuracy of lesion measurement and characterization using specimens.
Abstract BACKGROUND: Digital breast tomosynthesis (DBT) is one of the new techniques being developed to overcome the inherent limitations of mammography caused by superimposed structures in a 2D projection. PURPOSE: To compare the diagnostic performances of digital breast tomosynthesis (DBT) and full-field digital mammography (FFDM) for lesion characterization and size measurement using breast specimens. MATERIAL AND METHODS: Out of 156 women scheduled for surgery, we included in our study 114 women, each of whom had a single, breast lesion. Three breast radiologists independently evaluated the DBT and F...
Source: Acta Radiologica - September 4, 2013 Category: Radiology Authors: Seo N, Kim HH, Shin HJ, Cha JH, Kim H, Moon JH, Gong G, Ahn SH, Son BH Tags: Acta Radiol Source Type: research

MRI evaluation of the four tunnels of double-bundle ACL reconstruction.
CONCLUSION: The tunnel locations of DB ACL reconstruction can be evaluated with MRI. Tunnel location was associated with tunnel enlargement that in turn was associated with tunnel communication. PMID: 24005561 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - September 4, 2013 Category: Radiology Authors: Kiekara T, Järvelä T, Huhtala H, Paakkala A Tags: Acta Radiol Source Type: research

Assessment of aggressiveness of rectal cancer using 3-T MRI: correlation between the apparent diffusion coefficient as a potential imaging biomarker and histologic prognostic factors.
CONCLUSION: Significant correlations were found between mean ADC values and differentiation grade. ADC may be useful as an imaging biomarker of tumor aggressiveness, but it cannot serve as an independent biomarker of advanced rectal cancer. PMID: 24005562 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - September 4, 2013 Category: Radiology Authors: Akashi M, Nakahusa Y, Yakabe T, Egashira Y, Koga Y, Sumi K, Noshiro H, Irie H, Tokunaga O, Miyazaki K Tags: Acta Radiol Source Type: research

Explanations for the heterogeneity of splenic enhancement derived from blood flow kinetic measurements using dynamic contrast-enhanced CT (DCE-CT).
CONCLUSION: Preliminary results suggest that DCE-CT-based splenic perfusion measurements enable detection of different blood flow kinetics presumed to represent the complex and characteristic architecture of splenic vascular channels. It is the separate analysis of flow kinetics through the rapidly enhancing channels that allow for additional differentiation between controls and patients with portal hypertension. PMID: 24005563 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - September 4, 2013 Category: Radiology Authors: Sauter AW, Spira D, Schulze M, Horger MS Tags: Acta Radiol Source Type: research

The effectiveness of 3T time-of-flight magnetic resonance angiography for follow-up evaluations after the stent-assisted coil embolization of cerebral aneurysms.
Abstract BACKGROUND: Artifacts introduced by stents limit the value of magnetic resonance (MR) imaging as a follow-up modality after the stent-assisted coil embolization of cerebral aneurysms. PURPOSE: To investigate the usefulness of 3 Tesla (3T) time-of-flight (TOF) MR angiography (MRA) for the follow-up evaluation. MATERIAL AND METHODS: Twenty-two aneurysms of 20 patients treated with stent-assisted coil embolization were followed up with 3T TOF MRA and digital subtraction angiography (DSA) with three-dimensional rotational angiography (3DRA). The status of coiled aneurysms was compared with 3T TOF MR...
Source: Acta Radiologica - September 3, 2013 Category: Radiology Authors: Cho WS, Kim SS, Lee SJ, Kim SH Tags: Acta Radiol Source Type: research

Differentiation of lung neoplasms with lepidic growth and good prognosis from those with poor prognosis using computer-aided 3D volumetric CT analysis and FDG-PET.
CONCLUSION: Computer-aided analyses of pulmonary nodules proved most useful for establishing the optimal criterion for differentiation of lepidic growth type lung neoplasms with good prognosis from those with poor prognosis. PMID: 24003260 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - September 3, 2013 Category: Radiology Authors: Morimoto D, Takashima S, Sakashita N, Sato Y, Jiang B, Hakucho T, Miyake C, Takahashi Y, Tomita Y, Nakanishi K, Hosoki T, Higashiyama M Tags: Acta Radiol Source Type: research

DCE-CT in the follow-up of targeted therapy in GISTs.
PMID: 23975667 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - August 30, 2013 Category: Radiology Authors: Rasmussen F Tags: Acta Radiol Source Type: research

Clinical outcomes of endovascular treatments for critical limb ischemia with chronic total occlusive lesions limited to below-the-knee arteries.
CONCLUSION: Even though EVT for CLI in patients with diabetes and CTO in isolated BTK arteries does not have comparable primary patency, it can lead to a very high rate of limb salvage. This result can accentuate the importance of more blood flow to the foot by means of successful revascularization using EVT rather than long-term patency in CTO of isolated BTK arteries. PMID: 23975668 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - August 30, 2013 Category: Radiology Authors: Park SW, Kim JS, Yun IJ, Hwang JJ, Lee SA, Chee HK, Chang SH, Shin DH, Jung HG, Chang IS Tags: Acta Radiol Source Type: research

Diffusion-weighted MRI of metastatic liver lesions: is there a difference between hypervascular and hypovascular metastases?
CONCLUSION: Liver metastases are not a homogenous group of lesions with uniform DW-MRI features. Hypervascular metastases demonstrate significantly lower ADC values compared to hypovascular metastases. DW-MRI improved detection of hypervascular metastases compared to T2-w images alone and is a useful adjunct to T2-w images for their detection. PMID: 23986455 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - August 28, 2013 Category: Radiology Authors: Schmid-Tannwald C, Thomas S, Ivancevic MK, Dahi F, Rist C, Sethi I, Oto A Tags: Acta Radiol Source Type: research

Trends in pediatric imaging: ultrasound.
Abstract For the last three decades, two-dimensional (2D) echocardiography and Doppler echocardiography have been the primary imaging modalities for the diagnosis and management of heart disease in infants, children, and adolescents. These methods are non-invasive, highly sensitive, and cost-effective, and widely available, making them very useful in clinical work. During this period, the anatomic and hemodynamic abnormalities associated with different congenital and acquired pediatric heart diseases have been well outlined by echocardiography. Recent advances in computer technology, signal processing, and transdu...
Source: Acta Radiologica - August 27, 2013 Category: Radiology Authors: Berg A, Greve G Tags: Acta Radiol Source Type: research

Diffusion-weighted MRI and optimal b-value for characterization ofliver lesions.
CONCLUSION: In DWI, we recommend the use of b-values of 0 and 800 s/mm(2) as two b-values, or b = 0, 50, 600, 800, and 1000 s/mm(2) as multiple b-values for distinguishing between benign and malignant liver lesions. Mean ADC value is 13% higher in total by additional use of b = 0 and b = 50 s/mm(2) in multiple b-value combinations. PMID: 23982322 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - August 27, 2013 Category: Radiology Authors: Kaya B, Koc Z Tags: Acta Radiol Source Type: research

Evaluation of plaque detection and optimum time of enhancement in acute attack multiple sclerosis after contrast injection.
Abstract BACKGROUND: Magnetic resonance imaging (MRI) is important in the early diagnosis of novel or relapsing multiple sclerosis (MS). In addition, the optimal MRI protocol plays an important role in detecting MS plaques. PURPOSE: To find the best time to detect MS plaques on MRI after Gadobutrol injection. MATERIAL AND METHODS: Sixty-two relapsing-remitting type MS patients, (56 women, 6 men) with the mean age of 31 ± 7 years were enrolled into this study. The patients underwent T1-weighted MRI scan without contrast agents. Subsequently, Gadobutrol was injected (0.1 mmol/kg...
Source: Acta Radiologica - August 24, 2013 Category: Radiology Authors: Hashemi H, Behzadi S, Ghanaati H, Harirchian MH, Yaghoobi M, Shakiba M, Jalali AH, Firouznia K Tags: Acta Radiol Source Type: research

Single-center experience in the endovascular management of isolated iliac artery aneurysm.
CONCLUSION: Percutaneous management of IAA is effective and safe with various techniques depending on the anatomical and pathologic features of the isolated IAA. PMID: 23975063 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - August 23, 2013 Category: Radiology Authors: Kim MD, Lee DY, Lee M, Won JY, Lee SJ, Kim IJ, Park SI, Choi D, Ko YG Tags: Acta Radiol Source Type: research

Dual-energy CT: clinical application in differentiating an adrenal adenoma from a metastasis.
Abstract BACKGROUND: Application of dual-energy CT in characterization of adrenal nodules has not been well evaluated. PURPOSE: To evaluate the ability of dual-energy CT scan to differentiate an adrenal adenoma from a metastasis. MATERIAL AND METHODS: Fifty-five patients presenting 63 adrenal nodules underwent dual-energy CT scan at tube voltages of 80 kVp and 140 kVp. Mean attenuation values were measured for every nodule at 80/140 kVp and at 40/100 keV. Mean attenuation value changes between 140 kVp and 80 kVp (MAVC140-80kVp) and mean attenuation value changes ...
Source: Acta Radiologica - August 22, 2013 Category: Radiology Authors: Shi JW, Dai HZ, Shen L, Xu DF Tags: Acta Radiol Source Type: research

BI-RADS(R) 3 lesions at contrast-enhanced breast MRI: is an initial short-interval follow-up necessary?
CONCLUSION: In this study the malignancy rate of MRI-BI-RADS® 3 lesions corresponded to mammographic BI-RADS® 3 lesions. Initial short-interval MRI should be suggested to identify malignant MRI-BI-RADS® 3 lesions. PMID: 23969262 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - August 22, 2013 Category: Radiology Authors: Bahrs SD, Baur A, Hattermann V, Hahn M, Vogel U, Claussen CD, Siegmann-Luz KC Tags: Acta Radiol Source Type: research

Diffusion tensor imaging of the cervical spinal cord in healthy adult population: normative values and measurement reproducibility at 3T MRI.
CONCLUSION: Both ROI- and FT-based measurements are applicable methods yielding reproducible results for cervical spinal cord DTI metrics. Normative values for both measurement methods are presented. PMID: 23969263 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - August 22, 2013 Category: Radiology Authors: Brander A, Koskinen E, Luoto TM, Hakulinen U, Helminen M, Savilahti S, Ryymin P, Dastidar P, Ohman J Tags: Acta Radiol Source Type: research

The role of follow-up ultrasound and clinical parameters after abdominal MDCT in patients with multiple trauma.
CONCLUSION: Routine US follow-up does not yield additional information after abdominal trauma. In patients with MDCT-proven organ lesions, follow-up MDCT should be considered if indicated by abnormal clinical and/or laboratory findings. PMID: 23969264 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - August 22, 2013 Category: Radiology Authors: Geyer LL, Körner M, Linsenmaier U, Wirth S, Reiser M, Meindl T Tags: Acta Radiol Source Type: research

Low-contrast-dose protocol in cardiac CT: 20% contrast dose reduction using 100 kVp and high-tube-current-time setting in 256-slice CT.
Abstract BACKGROUND: The use of the smallest contrast dose is highly desirable in performing cardiac computed tomography (CT), especially for patients with cardiovascular diseases to prevent contrast-induced nephropathy. PURPOSE: To evaluate the feasibility of 20% reduced contrast dose protocol in cardiac CT using 100 kVp and high-tube-current-time product setting. MATERIAL AND METHODS: Fifty patients were scanned with our conventional 120 kVp protocol, and the other 50 patients underwent scans using a tube voltage of 100 kVp, a high-tube-current-time product, and a 20% reduced contr...
Source: Acta Radiologica - August 22, 2013 Category: Radiology Authors: Kidoh M, Nakaura T, Nakamura S, Nakamura S, Sakaino N, Harada K, Uemura S, Yamashita Y Tags: Acta Radiol Source Type: research

Ultrasound findings of subacute thyroiditis: a single institution retrospective review.
CONCLUSION: Our data confirm the high sensitivity of US in the diagnosis of ST: diffuse hypoechoic and confluent areas with the characteristic features like "lava flow". PMID: 23969266 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - August 22, 2013 Category: Radiology Authors: Cappelli C, Pirola I, Gandossi E, Formenti A, Agosti B, Castellano M Tags: Acta Radiol Source Type: research

Computed tomography and magnetic resonance imaging findings of inflammatory myofibroblastic tumors of the head and neck.
CONCLUSION: The imaging features of IMTs of the head and neck are non-specific. An ill-defined, aggressive mass and variable enhancement on CT and MRI may suggest the diagnosis of IMT. IMT should be included in the differential diagnosis of regional tumors. PMID: 23966365 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - August 21, 2013 Category: Radiology Authors: Gao F, Zhong R, Li GH, Zhang WD Tags: Acta Radiol Source Type: research

Incidental findings in computed tomographic angiography for planning percutaneous aortic valve replacement: advanced age, increased cancer prevalence?
CONCLUSION: The prevalence of highly suspicious malignant incidental findings in patients undergoing TAVR is 3.8% with an average age of 81.6 years which is not high compared to prevalence in the literature dealing with patients aged
Source: Acta Radiologica - August 21, 2013 Category: Radiology Authors: Gufler H, Schulze CG, Wagner S Tags: Acta Radiol Source Type: research

White matter atrophy in brain of neuromyelitis optica: a voxel-based morphometry study.
CONCLUSION: We found white matter atrophy in several brain regions in the frontal, parietal, and occipital lobes in NMO, suggesting that subtle white matter damage relevant to the motor, vision, and cognition systems exists in NMO patients. The pattern of white matter atrophy in NMO is different from that in multiple sclerosis (MS). PMID: 23966367 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - August 21, 2013 Category: Radiology Authors: Duan Y, Liu Y, Liang P, Jia X, Ye J, Dong H, Li K Tags: Acta Radiol Source Type: research

Stromal fibrosis of the breast: outcome analysis.
CONCLUSION: Stromal fibrosis diagnosed by imaging-guided biopsy has a wide spectrum of imaging finding and can be managed safely with radiologic-pathologic correlation and subsequent short-term imaging follow-up. PMID: 23963149 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - August 20, 2013 Category: Radiology Authors: Shin S, Ko ES, Han BK, Ko EY Tags: Acta Radiol Source Type: research

The prevalence of lymph node metastases in clinically N0 necks with oral cavity squamous cell carcinoma: is CT good enough for nodal staging?
CONCLUSION: Diagnostic accuracy of CT is limited among N0 oral cavity SCC patients. Neck dissection should be performed, particularly for patients with poorly differentiated SCC or higher T-classification. PMID: 23963150 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - August 20, 2013 Category: Radiology Authors: Furukawa M, Dillon JK, Futran ND, Anzai Y Tags: Acta Radiol Source Type: research

Utility of MRI and PET/CT after neoadjuvant chemotherapy in breast cancer patients: correlation with pathological response grading system based on tumor cellularity.
Abstract BACKGROUND: MRI and PET/CT are useful for assessing breast cancer patients after neoadjuvant chemotherapy (NAC). PURPOSE: To investigate the utility of MRI and PET/CT in the prediction of pathologic response to neoadjuvant chemotherapy using Miller-Payne grading system in patients with breast cancer. MATERIAL AND METHODS: From January 2008 to December 2010, 59 consecutive patients with pathologically proven breast cancer, who underwent neoadjuvant chemotherapy followed by surgery were retrospectively enrolled. The maximal diameter decrease rate and volume reduction rate by three-dimensional (3D)...
Source: Acta Radiologica - August 20, 2013 Category: Radiology Authors: Kim T, Kang DK, An YS, Yim H, Jung YS, Kim KS, Kang SY, Kim TH Tags: Acta Radiol Source Type: research

Effects of Mn-DPDP and manganese chloride on hemodynamics and glucose tolerance in anesthetized rats.
CONCLUSION: Mn-DPDP administration does not affect glucose tolerance or regional blood flow, besides an increase in arterial hepatic blood flow, and may therefore be suitable for visualization of islets. PMID: 23963152 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - August 20, 2013 Category: Radiology Authors: Gao X, Sandberg M, Quach M, Bodin B, Johansson L, Jansson L Tags: Acta Radiol Source Type: research

Prediction of nuclear grade of clear cell renal cell carcinoma with MRI: intratumoral susceptibility signal intensity versus necrosis.
CONCLUSION: SWI can evaluate ITSSs without contrast materials and can be an alternative to grading CRCCs preoperatively for some special patients. PMID: 23946232 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - August 14, 2013 Category: Radiology Authors: Chen J, Sun J, Xing W, Ding J, Chen T, Dai Y, Sun J, Hu J Tags: Acta Radiol Source Type: research

Persistent petrosquamosal sinus in adults: qualitative imaging evaluation on high-resolution CT venography.
CONCLUSION: HRCTV can mostly identify the characteristics of PSS similar to its anatomic findings and the optimal imaging technique has the potential to improve its clinical management. PMID: 23946233 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - August 14, 2013 Category: Radiology Authors: Zhao P, Wang Z, Xian J, Yan F, Liu Z Tags: Acta Radiol Source Type: research

Uterine artery embolization in single symptomatic leiomyoma: do anatomical imaging criteria predict clinical presentation and long-term outcome?
Abstract BACKGROUND: Uterine artery embolization (UAE) has proven to be an effective treatment alternative for women suffering from symptomatic uterine leiomyomas. However, long-term clinical evaluation reveals treatment failure in approximately 25% of patients. To cope with the great variability in the extent of leiomyoma disease former studies are based on the simplifying assumption that the largest leiomyoma mainly causes the symptoms. PURPOSE: To evaluate whether anatomical characteristics in women with a single symptomatic leiomyoma influence clinical presentation and outcome after UAE. MATERIAL AND...
Source: Acta Radiologica - August 13, 2013 Category: Radiology Authors: Koesters C, Powerski MJ, Froeling V, Kroencke TJ, Scheurig-Muenkler C Tags: Acta Radiol Source Type: research

MR imaging of articular cartilage at 1.5T and 3.0T: comparison of IDEAL 2D FSE and 3D SPGR with fat-saturated 2D FSE and 3D SPGR in a porcine model.
Abstract BACKGROUND: IDEAL technique is a robust fat-water separation method which is potentially useful in cartilage imaging with significant improvement in the cartilage signal-to-noise ratio (SNR). PURPOSE: To identify whether iterative decomposition of water and fat with echo asymmetry and least-squares estimation (IDEAL) improved diagnostic performance for IDEAL 2D fast spin echo (FSE) and 3D spoiled gradient-recalled echo (SPGR) versus fat-saturated (FS) protocols at 1.5 and 3.0 T in the evaluation of patella-femoral cartilage lesions. MATERIAL AND METHODS: Forty-six artificial cartilage lesions we...
Source: Acta Radiologica - August 13, 2013 Category: Radiology Authors: Cha JG, Yoo JH, Rhee SJ, Hwang SS, Han JK Tags: Acta Radiol Source Type: research

An FP-CIT PET comparison of the difference in dopaminergic neuronal loss in subtypes of early Parkinson's disease.
CONCLUSION: We suggest that differential of DAT uptake in the striatum did not allow for a reliable separation of subtypes into tremor-dominant and non-tremor-dominant, especially in the early stages of PD. Therefore, we assumed that many systems besides the nigrostriatal dopaminergic system are involved in the generation of tremors in PD. PMID: 23943629 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - August 13, 2013 Category: Radiology Authors: Song IU, Chung YA, Oh JK, Chung SW Tags: Acta Radiol Source Type: research