Imaging in juvenile idiopathic arthritis (JIA): an update with particular emphasis on MRI.
Abstract Juvenile idiopathic arthritis (JIA) is a heterogeneous condition encompassing all forms of chronic arthritis of unknown origin and with onset before 16 years of age. During the last decade new, potent therapeutic agents have become available, underscoring the need for accurate monitoring of therapeutic response on both disease activity and structural damage to the joint. However, so far, treatment efficacy is based on clinical ground only, although clinical parameters are poor markers for disease activity and progression of structural damage. Not so for rheumatoid arthritis patients where the inclusion of...
Source: Acta Radiologica - July 19, 2013 Category: Radiology Authors: Damasio MB, de Horatio LT, Boavida P, Lambot-Juhan K, Rosendahl K, Tom P, Ording L Tags: Acta Radiol Source Type: research

Radial MRI during free breathing in contrast-enhanced hepatobiliary phase imaging.
CONCLUSION: RADAR-SE can be useful for hepatobiliary phase Gd-EOB-DTPA-enhanced MRI in patients who have difficulty holding their breath. PMID: 23873886 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - July 19, 2013 Category: Radiology Authors: Gomi T, Nagamoto M, Hasegawa M, Tabata A, Iwasaki M, Ooka M, Murata N, Tsunoo M, Iizuka Y, Kohda E, Shiraga N Tags: Acta Radiol Source Type: research

Pulmonary involvement in rheumatoid arthritis: multidetector computed tomography findings.
CONCLUSION: Rheumatoid arthritis is associated with a high frequency of CT findings and CT patterns, with nodules and pleural thickening being the most common CT findings and FB and ND being the most common CT patterns. MDCT identification of patients with RA may be helpful in the evaluation of pulmonary disease, even in patients without symptoms and PFT abnormalities. PMID: 23873887 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - July 19, 2013 Category: Radiology Authors: Yuksekkaya R, Celikyay F, Yilmaz A, Arslan S, Inanir A, Inonu H, Deniz C Tags: Acta Radiol Source Type: research

Quantitative evaluation of the axonal degeneration of central motor neurons in chronic cerebral stroke with diffusion tensor imaging.
CONCLUSION: The changes and diffusions of water molecule associated with the axonal degeneration of central motor neurons after chronic cerebral stroke can be detected by DTI, which can directly quantitatively reflect the degree and extent of axonal degeneration of central motor neurons and can compensate the shortcomings of conventional MRI and diffusion-weighted imaging (DWI). PMID: 23873888 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - July 19, 2013 Category: Radiology Authors: Lai C, Zhou HC, Ma XH, Zhang HX Tags: Acta Radiol Source Type: research

2D versus 3D roadmap for uterine artery catheterization: impact on several angiographic parameters.
CONCLUSION: Both roadmap techniques are effective imaging-guided tools for uterine artery catheterization, without difference in terms of radiation exposure or contrast load. The total procedure time is shorter in the 2D group. PMID: 23873889 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - July 19, 2013 Category: Radiology Authors: Maleux G, Michielsen K, Timmerman D, Poppe W, Heye S, Vaninbroukx J, Bosmans H Tags: Acta Radiol Source Type: research

CMR assessment of right ventricular function in patients with combined pulmonary stenosis and insufficiency after correction of tetralogy of Fallot.
Abstract BACKGROUND: Tetralogy of Fallot (TOF) is one of the most common types of congenital heart disease and requires prompt surgical correction. Post-correction pulmonary insufficiency (PI) often ensues in adulthood. At times, the PI is accompanied by residual pulmonary stenosis (PS). Little is known regarding right ventricular (RV) function in the setting of combined PS and PI. PURPOSE: To compare cardiac magnetic resonance (CMR) parameters for the assessment of RV function between patients with combined pulmonary stenosis and pulmonary insufficiency (PSPI) and isolated PI following surgical repair of TOF...
Source: Acta Radiologica - July 17, 2013 Category: Radiology Authors: Kohi MP, Ordovas KG, Naeger DM, Meadows AK, Foster E, Higgins CB Tags: Acta Radiol Source Type: research

The contribution of diffusion tensor imaging and magnetic resonance spectroscopy for the differentiation of breast lesions at 3T.
CONCLUSION: In conclusion, applying DTI and 1H-MRS together, adds incremental diagnostic value in the characterization of breast lesions and may sufficiently improve the low specificity of conventional breast MRI. PMID: 23864060 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - July 17, 2013 Category: Radiology Authors: Tsougos I, Svolos P, Kousi E, Athanassiou E, Theodorou K, Arvanitis D, Fezoulidis I, Vassiou K Tags: Acta Radiol Source Type: research

Pulmonary embolism in oncologic patients: frequency and embolus burden of symptomatic and unsuspected events.
Abstract BACKGROUND: Pulmonary embolism (PE) is a common cause of morbidity and mortality in oncologic patients. Furthermore, PE is an unsuspected finding in many cases. PURPOSE: To determine the frequency and embolus burden of PE in a consecutive oncologic patient group including symptomatic as well as incidental and initially unreported events. MATERIAL AND METHODS: In a retrospective, single-center study from June 2005 to January 2010 all patients with an oncologic disease (ICD-10 code C00 to C96) that received at least one contrast-enhanced computed tomography (CT) examination of the chest were revie...
Source: Acta Radiologica - July 17, 2013 Category: Radiology Authors: Bach AG, Schmoll HJ, Beckel C, Behrmann C, Spielmann RP, Wienke A, Abbas J, Surov A Tags: Acta Radiol Source Type: research

MDCT-based scoring system for differentiating angiomyolipoma with minimal fat from renal cell carcinoma.
Abstract BACKGROUND: Subtype-related various computed tomography (CT) features of renal cell carcinoma (RCC) are a confusing factor in differentiating angiomyolipoma with minimal fat (AMLmf) from RCC. To overcome RCC heterogeneity, a scoring system, which integrates multiple discrimitive parameters can be helpful for differentiating AMLmf from RCC. PURPOSE: To develop a MDCT-based scoring system for differentiating AMLmf from RCC. MATERIAL AND METHODS: In 407 patients with pathologically confirmed 48 AMLmfs and 359 RCCs (247 clear cell RCCs, 67 papillary RCCs, and 45 chromophobe RCCs), MDCT features (rat...
Source: Acta Radiologica - July 17, 2013 Category: Radiology Authors: Kim MH, Lee J, Cho G, Cho KS, Kim J, Kim JK Tags: Acta Radiol Source Type: research

Volumetric analysis of lung nodules in computed tomography (CT): comparison of two different segmentation algorithm softwares and two different reconstruction filters on automated volume calculation.
k P Abstract BACKGROUND: A precise detection of volume change allows for better estimating the biological behavior of the lung nodules. Postprocessing tools with automated detection, segmentation, and volumetric analysis of lung nodules may expedite radiological processes and give additional confidence to the radiologists. PURPOSE: To compare two different postprocessing software algorithms (LMS Lung, Median Technologies; LungCARE®, Siemens) in CT volumetric measurement and to analyze the effect of soft (B30) and hard reconstruction filter (B70) on automated volume measurement. MATERIAL AND METHODS: ...
Source: Acta Radiologica - July 17, 2013 Category: Radiology Authors: Christe A, Brönnimann A, Vock P Tags: Acta Radiol Source Type: research

Role of combined BI-RADS assessment using mammography and sonography for evaluation of incidental hypermetabolic lesions in the breast on 18F-FDG PET-CT.
CONCLUSION: Both mammography and sonography should be considered the next step to evaluate incidental hypermetabolic lesions on 18F-FDG PET-CT because combined BI-RADS assessment provides an excellent negative predictive value for excluding malignancy. PMID: 23864064 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - July 17, 2013 Category: Radiology Authors: Lim S, Lee EH, Park JM, Chang YW, Kim HH, Jeong SH Tags: Acta Radiol Source Type: research

Acute prevertebral calcific tendinitis: a source of non-surgical acute cervical pain.
CONCLUSION: Prevertebral calcific tendinitis is a cause of acute cervical pain that clinically mimics a retropharyngeal abscess, however on neck CT has a characteristic appearance. Correct identification of this pathologic condition will help avoiding unnecessary invasive procedures. PMID: 23864065 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - July 17, 2013 Category: Radiology Authors: Silva CF, Soffia PS, Pruzzo E Tags: Acta Radiol Source Type: research

Correlation between anatomic landmarks and fMRI in detection of the sensorimotor cortex in patients with structural lesions.
CONCLUSION: In patients with lesions that obscure normal cerebral landmarks, fMRI supplies the information that is not available from the anatomic images. In patients with landmarks that can be recognized, the location of the rolandic cortex may be misjudged in some cases if functional imaging is not used. Anatomic landmarks may not correlate with the area of functional activation in gliotic lesions and tumors. Determining the risk of a postoperative neurologic defect from surgery is likely to be more reliable with functional imaging than with conventional anatomic imaging. PMID: 23864066 [PubMed - as supplied by publ...
Source: Acta Radiologica - July 17, 2013 Category: Radiology Authors: Hingwala D, Thomas B, Radhakrishnan A, N SN, Kesavadas C Tags: Acta Radiol Source Type: research

Normative data on axial rotation of atlanto-occipital joint on 3 Tesla MRI using a simple and reliable method of calculation.
CONCLUSION: A simple and reliable method of measurement on 3.0 T MRI demonstrated the normative axial rotation range of the AOJ in different positions to be between -4.8° and +5.0° and it was different from zero in neutral rotation. This method could be practically used to precisely diagnose AOJ rotary subluxation or dislocation. PMID: 23858504 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - July 15, 2013 Category: Radiology Authors: Liu K, Niu X, Wu C, Guo L, Liu C, Song H, Chhabra A Tags: Acta Radiol Source Type: research

Ectopic pancreas in upper gastrointestinal tract: MRI findings with emphasis on differentiation from submucosal tumor.
Abstract BACKGROUND: Ectopic pancreas can frequently be mistaken for other submucosal masses. Ectopic pancreas may follow the signal intensity of mother pancreas on various magnetic resonance (MR) sequences, which might be helpful for differentiation between ectopic pancreas and other submucosal tumors in upper gastrointestinal (UGI) tract. PURPOSE: To evaluate the value of MR imaging (MRI) in differentiating ectopic pancreases from submucosal tumors in UGI tract. MATERIAL AND METHODS: Fifteen patients with ectopic pancreas and 26 patients with UGI submucosal tumors were included. All patients underwent ...
Source: Acta Radiologica - July 15, 2013 Category: Radiology Authors: Jang KM, Kim SH, Park HJ, Lim S, Kang TW, Lee SJ, Choi D Tags: Acta Radiol Source Type: research

Improving the Gleason grading accuracy of transrectal ultrasound-guided biopsy.
Rodríguez A, Aguirre-Jaime A Abstract BACKGROUND: Transrectal ultrasound (TRUS)-guided prostate biopsy is the technique of choice for the assessment of clinical suspicion of prostate cancer (PC) based on abnormal digital rectal examination (DRE) and/or elevated or rising levels of prostate-specific antigen (PSA). PURPOSE: To identify factors involved in TRUS-guided prostate biopsy, which can be modified by radiologists in order to improve Gleason score (GS) accuracy, and to assess the influence of clinical variables. MATERIAL AND METHODS: We carried out a retrospective review of the records of 185...
Source: Acta Radiologica - July 15, 2013 Category: Radiology Authors: Nieto-Morales ML, Fernández-Ramos J, Pérez-Méndez L, Alventosa-Fernández E, Pastor-Santoveña MS, Arias-Rodríguez A, Aguirre-Jaime A Tags: Acta Radiol Source Type: research

Can clinical and MRI findings predict the prognosis of variant and classical type of posterior reversible encephalopathy syndrome (PRES)?
CONCLUSION: Even though BP influences the involvement of the brain stem, involvement of the brain stem is not influential on the prognosis. It seems that the influential factor to prognosis is the reversibility of lesions and hemorrhage. PMID: 23858507 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - July 15, 2013 Category: Radiology Authors: Moon SN, Jeon SJ, Choi SS, Song CJ, Chung GH, Yu IK, Kim DH Tags: Acta Radiol Source Type: research

Incidental thyroid lesions identified by ultrasound in patients with non-thyroidal head and neck cancer.
CONCLUSION: Screening of the thyroid gland should be included in the preoperative US examination for cervical lymph node metastases in patients with non-thyroidal head and neck cancer. PMID: 23858508 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - July 15, 2013 Category: Radiology Authors: Kim HC, Yoon DY, Seo YL, Namkung S, Hong MS, Baek S, Lim KJ, Yun EJ, Choi CS, Bae SH, Chung EJ, Kwon KH, Rho YS Tags: Acta Radiol Source Type: research

Biexponential analysis of diffusion-weighted imaging: comparison of three different calculation methods in transplanted kidneys.
RS Abstract BACKGROUND: Biexponential analysis has been used increasingly to obtain contributions of both diffusion and microperfusion to the signal decay in diffusion-weighted imaging DWI of different parts of the body. PURPOSE: To compare biexponential diffusion parameters of transplanted kidneys obtained with three different calculation methods. MATERIAL AND METHODS: DWI was acquired in 15 renal allograft recipients (eight men, seven women; mean age, 52.4 ± 14.3 years) using a paracoronal EPI sequence with 16 b-values (b = 0-750 s/mm(2)) and six averages at 1...
Source: Acta Radiologica - July 15, 2013 Category: Radiology Authors: Heusch P, Wittsack HJ, Pentang G, Buchbender C, Miese F, Schek J, Kröpil P, Antoch G, Lanzman RS Tags: Acta Radiol Source Type: research

Characterization of incidental cardiac masses in oncological patients using a new CT-based tumor volume perfusion technique.
Abstract Cardiac masses are challenging for non-invasive diagnostic procedures and therapy, respectively. In tumor patients differentiation between primary or secondary cardiac neoplasm and thrombus is a frequent and knowingly difficult task to manage. To avoid complex and unnecessary surgical diagnostic procedures non-invasive methods are in favor. For initiation of adequate therapy and evaluation of prognosis, however, early and reliable diagnosis is mandatory.So far, echocardiography and magnetic resonance imaging represent the mainstay for cardiac imaging diagnosis. Recently, the new technique of CT-based tumo...
Source: Acta Radiologica - July 4, 2013 Category: Radiology Authors: Schulze M, Spira D, Claussen C, Sauter A, Mayer F, Horger M Tags: Acta Radiol Source Type: research

Comparison of lung lesion biopsies between low-dose CT-guided and conventional CT-guided techniques.
CONCLUSION: Compared to conventional CT-guided biopsies, lung lesion biopsies guided by the low-dose CT biopsy protocol showed dramatically lower CTDIw and DLP levels. In contrast, the diagnostic yield of the procedures did not differ significantly, which is a recommended technique in certain populations. PMID: 23817682 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - July 1, 2013 Category: Radiology Authors: Meng XX, Kuai XP, Dong WH, Jia NY, Liu SY, Xiao XS Tags: Acta Radiol Source Type: research

Diffusion-weighted MR imaging of salivary glands with gustatory stimulation: comparison before and after radiotherapy.
Abstract BACKGROUND: Xerostomia is the most prominent complication in patients with head and neck carcinoma after radiotherapy (RT). Diffusion-weighted magnetic resonance imaging (DWI) with gustatory stimulation may contribute to the evaluation of salivary gland function. PURPOSE: To investigate the value of DWI for quantifying physiological changes of the parotid gland during gustatory stimulation in patients before and after RT. MATERIAL AND METHODS: Magnetic resonance imaging (MRI) was performed in 28 consecutive patients with nasopharyngeal carcinoma before and after RT and clinical xerostomia was al...
Source: Acta Radiologica - July 1, 2013 Category: Radiology Authors: Zhang Y, Ou D, Gu Y, He X, Peng W, Mao J, Yue L, Shen X Tags: Acta Radiol Source Type: research

Fine-motor skills testing and prediction of endovascular performance.
CONCLUSION: Clinicians with increasing levels of endovascular technical experience had developed good fine-motor control of the non-dominant hand, in particular, that was associated with good procedural performance in the simulator. The aptitude test did not predict endovascular skills acquisition among medical students, thus, cannot be suggested for selection of novice candidates. Procedural experience and practice probably supplant the influence of innate abilities (talent) over time. PMID: 23803752 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - June 26, 2013 Category: Radiology Authors: Bech B, Lönn L, Schroeder TV, Ringsted C Tags: Acta Radiol Source Type: research

Three-dimensional contrast-enhanced magnetic resonance venography for detection of renal vein thrombosis: comparison with multidetector CT venography.
Abstract BACKGROUND: Renal vein thrombosis is not uncommon, however, there have been few reports on the diagnostic accuracy of three-dimensional contrast-enhanced magnetic resonance venography (3D-CE-MRV) in the detection of renal vein thrombosis (RVT). PURPOSE: To evaluate the value of 3D-CE-MRV for detecting RVT with multidetector computed tomography (CT) venography as reference standard. MATERIAL AND METHODS: Thirty-two patients with nephrotic syndrome underwent renal CT venography and gradient echo pulse sequence (FLASH 3D) 3D-CE-MRV in a clinical 3-T whole-body MR scanner for suspected RVT with time...
Source: Acta Radiologica - June 21, 2013 Category: Radiology Authors: Zhang LJ, Wu X, Yang GF, Tang CX, Luo S, Zhou CS, Ji XM, Lu GM Tags: Acta Radiol Source Type: research

Differences in perfusion CT parameter values with commercial software upgrades: a preliminary report about algorithm consistency and stability.
ConclusionThe three versions of the same platform tested yield different perfusion measurements. Thus, our preliminary results show that Perfusion 4D version uses a stable deconvolution algorithm to provide more reliable measurements. PMID: 23612426 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - April 23, 2013 Category: Radiology Authors: Mazzei MA, Squitieri NC, Sani E, Guerrini S, Imbriaco G, Di Lucia D, Guasti A, Mazzei FG, Volterrani L Tags: Acta Radiol Source Type: research

T2-weighted vs. intrathecal contrast-enhanced MR cisternography in the evaluation of CSF rhinorrhea.
ConclusionThe minimally invasive CEMRC is an effective method with higher sensitivity and specificity than T2MRC in the evaluation of CSF fistulas. PMID: 23612427 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - April 23, 2013 Category: Radiology Authors: Ecin G, Oner AY, Tokgoz N, Ucar M, Aykol S, Tali T Tags: Acta Radiol Source Type: research

Glue embolization for gastroduodenal ulcer bleeding: contribution to hemodynamics and healing process.
Abstract BackgroundAlthough the morbidity of bowel ischemic events after glue embolization has been suggested, a causal relationship between glue and ischemia has not been clearly established.PurposeTo evaluate the efficiency and safety of transcatheter arterial embolization with n-butyl cyanoacrylate (NBCA-TAE) for upper gastrointestinal hemorrhage (GIH).Material and MethodsBetween October 2006 and October 2012, 21 patients with upper GIH underwent NBCA-TAE, and endoscopic data were obtained within 30 days of follow-up. Shock index prior to and immediately after NBCA-TAE were compared to determine changes in hemo...
Source: Acta Radiologica - April 23, 2013 Category: Radiology Authors: Mine T, Murata S, Nakazawa K, Onozawa S, Ueda T, Miyauchi M, Morita S, Kumita S Tags: Acta Radiol Source Type: research

Impact of image quality, radiologists, lung segments, and Gunnar eyewear on detectability of lung nodules in chest CT.
ConclusionSensitivity for lung nodules was significantly enhanced by Gunnar eyewear (+3%), while lower image quality (40 ref mAs) had no impact on nodule sensitivity. Not using the glasses had a bigger impact on sensitivity than lowering the image quality. PMID: 23612429 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - April 23, 2013 Category: Radiology Authors: Christe A, Ebner L, Steiger P, Parikh SR, Shah AD, Roychoudhury K, Vock P, Roos JE Tags: Acta Radiol Source Type: research

MicroPET-CT evaluation of interstitial brachytherapy in pancreatic carcinoma xenografts.
ConclusionThese results suggest that 18F-FDG microPET-CT may be useful as a non-invasive imaging modality to assess early response to (125)I seed brachytherapy in a pancreatic carcinoma Xenograft. PMID: 23612430 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - April 23, 2013 Category: Radiology Authors: Jian L, Zhongmin W, Kemin C, Yunfeng Z, Gang H Tags: Acta Radiol Source Type: research

Accuracy of iodine removal using dual-energy CT with or without a tin filter: an experimental phantom study.
ConclusionBoth with and without a tin filter, iodine removal was accurate under a threshold of iodine concentration. Although a surrounding structure with higher attenuation decreased the accuracy, a tin filter improved the margin of error. PMID: 23612431 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - April 23, 2013 Category: Radiology Authors: Kawai T, Takeuchi M, Hara M, Ohashi K, Suzuki H, Yamada K, Sugimura Y, Shibamoto Y Tags: Acta Radiol Source Type: research

Pseudoprogression in patients with glioblastoma: added value of arterial spin labeling to dynamic susceptibility contrast perfusion MR imaging.
ConclusionASL improves the diagnostic accuracy of DSC perfusion MRI in differentiating pseudoprogression from early tumor progression. PMID: 23592805 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - April 16, 2013 Category: Radiology Authors: Choi YJ, Kim HS, Jahng GH, Kim SJ, Suh DC Tags: Acta Radiol Source Type: research

Massive hemoptysis from pulmonary ligament artery supplying abnormal basal segments of the lower lobe.
ConclusionEven though pleural involvement is absent, underlying lesions involving the basal segments of the lower lobe could be a good indicator that the PLA is the cause of bleeding in patients with massive hemoptysis. PMID: 23588153 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - April 15, 2013 Category: Radiology Authors: Liu ZS, Li XQ, Li C, Zhou LJ, Wang JX, Wang W, Sun Y, Kuang XW Tags: Acta Radiol Source Type: research

MR features to suggest microinvasive ductal carcinoma of the breast: can it be differentiated from pure DCIS?
ConclusionNon-mass lesions with segmental distribution, heterogeneous enhancement, and strong initial enhancement with a wash-out curve were the dominant MRI findings of microinvasive ductal carcinoma. Compared with DCIS, microinvasive ductal carcinoma showed more suspicious imaging characteristics. For the non-mass lesions, clustered ring enhancement was also a characteristic finding of microinvasion on MRI. PMID: 23588154 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - April 15, 2013 Category: Radiology Authors: Hahn SY, Han BK, Ko EY, Shin JH, Hwang JY, Nam M Tags: Acta Radiol Source Type: research

Femoroacetabular impingement: presence of FAI-like features on conventional radiography in young patients presenting to primary care with hip pain.
ConclusionOur study demonstrates a high presence of FAI-like radiographic features in a young symptomatic population; these are often not mentioned in the radiology report. PMID: 23567257 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - April 8, 2013 Category: Radiology Authors: Sullivan C, Chakraverty J, Foley K, Narayanaswamy S, Kamath S Tags: Acta Radiol Source Type: research

Efficacy of intralesional triamcinolone injection in the treatment of mammillary fistula: a prospective study.
ero A, Canteras M Abstract BackgroundRecurring mammillary fistula (MF) is often difficult to manage.PurposeTo evaluate the efficacy of intralesional triamcinolone (ILT) injection versus irrigation with saline solution in the management of MF.Material and MethodsA prospective study was conducted including 10 patients with MF. The patients were distributed non-randomly into two groups: saline group (n = 5) and triamcinolone group (n = 5). Ultrasound guidance was used for ILT injection. The injection was repeated in the case of no response or recurrence.ResultsNo statistically significant differences were observed be...
Source: Acta Radiologica - April 5, 2013 Category: Radiology Authors: Berná-Serna JD, Berná-Mestre JD, Piñero A, Canteras M Tags: Acta Radiol Source Type: research

Adrenal lesions: variability in attenuation over time, between scanners, and between observers.
ConclusionThe clinically widespread use of specific attenuation threshold values for characterizing adrenal lesions must be used with great caution, considering that multiple factors, related to patient, equipment, scanning technique, and observer influence the outcome. PMID: 23562860 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - April 5, 2013 Category: Radiology Authors: Hammarstedt L, Thilander-Klang A, Muth A, Wängberg B, Odén A, Hellström M Tags: Acta Radiol Source Type: research

MR cisternography/myelography of post-traumatic spinal CSF fistulae and meningeal lesions in small animals.
ConclusionIntrathecal administration of Gd-DTPA is an effective method to reveal and confirm post-traumatic spinal CSF fistulae or other dural lesions in animals with potential application in humans. PMID: 23550181 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - April 2, 2013 Category: Radiology Authors: Muñoz A, Mateo I, Lorenzo V, Martinez J, Crespo J Tags: Acta Radiol Source Type: research

Adenosine-stress low-dose single-scan CT myocardial perfusion imaging using a 128-slice dual-source CT: a comparison with fractional flow reserve.
ConclusionAdenosine-stress low-dose single scan CTMPI using a 128-slice dual-source CT can provide complementary information on the hemodynamical significance of coronary artery stenosis as well as anatomical information of coronary arteries. PMID: 23550182 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - April 2, 2013 Category: Radiology Authors: Choo KS, Hwangbo L, Kim JH, Park YH, Kim JS, Kim J, Chun KJ, Jeong DW, Lim SJ Tags: Acta Radiol Source Type: research

Sigmoid sinus diverticulum and pulsatile tinnitus: analysis of CT scans from 15 cases.
ConclusionDehiscent sigmoid plate and extensive temporal bone pneumatization are two important imaging characteristics of the PT induced by sigmoid sinus diverticulum. PMID: 23550183 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - April 2, 2013 Category: Radiology Authors: Liu Z, Chen C, Wang Z, Gong S, Xian J, Wang Y, Liang X, Ma X, Li Y Tags: Acta Radiol Source Type: research

The preliminary exploration of 64-slice volume computed tomography in the accurate measurement of pleural effusion.
ConclusionThe 64-slice CT volume-rendering technique can accurately measure the volume in pleural effusion patients, and a linear regression equation can be used to estimate the volume of the free pleural effusion. PMID: 23550184 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - April 2, 2013 Category: Radiology Authors: Guo ZJ, Lin Q, Liu HT, Lu JY, Zeng YH, Meng FJ, Cao B, Zi XR, Han SM, Zhang YH Tags: Acta Radiol Source Type: research

Proposal to utilize simplified Swensen protocol in diagnosis of isolated pulmonary nodule.
ConclusionSmall non-calcified benign nodules were much more frequent than malignant nodules. The best time for dynamic contrast-enhanced CT density analysis was 4 min postcontrast. As well as saving time and money, this simplified Swensen protocol with only precontrast and 4 min postcontrast phases also reduces patient exposure to ionizing radiation. PMID: 23550185 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - April 2, 2013 Category: Radiology Authors: Ribeiro SM, Ruiz RL, Yoo HH, Cataneo DC, Cataneo AJ Tags: Acta Radiol Source Type: research

Potentials of high resolution magnetic resonance imaging versus computed tomography for preoperative local staging of colon cancer.
ConclusionPatients with locally advanced colon cancer, defined as tumor stage T3cd-T4, can be identified by both high resolution MRI and CT, even when CT is performed with a metastasis staging protocol. MRI may have an advantage, due to its high soft tissue discrimination, to identify certain prognostic factors such as T-stage and extramural venous invasion. PMID: 23550186 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - April 2, 2013 Category: Radiology Authors: Rollvén E, Holm T, Glimelius B, Lörinc E, Blomqvist L Tags: Acta Radiol Source Type: research

Non-enhanced MR angiography of renal arteries: comparison with contrast-enhanced MR angiography.
ConclusionNC-MRA is a valid alternative to CE-MRA for the assessment of renal arteries. PMID: 23550187 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - April 2, 2013 Category: Radiology Authors: Angeretti M, Lumia D, Canì A, Barresi M, Cardim LN, Piacentino F, Maresca A, Novario R, Genovese E, Fugazzola C Tags: Acta Radiol Source Type: research

Safety in pediatric imaging: an update.
um AA Abstract Many assumptions are made when imaging children. In particular a judgement is made regarding how safe or unsafe each imaging modality is, using relatively arbitrary definitions and distinctions, due to the lack of robust scientific data. Here, the latest evidence is reviewed, particularly regarding the medical exposure to ionizing radiation (X-rays and CT) and MRI in childhood. The best evidence currently available suggests a small but convincing risk of cumulative low-dose ionizing radiation in children. Given our predictions for the children imaged today, it seems reasonable to pursue non-ionizing...
Source: Acta Radiologica - April 2, 2013 Category: Radiology Authors: Arthurs OJ, Bjørkum AA Tags: Acta Radiol Source Type: research

Predicting local recurrence following breast-conserving treatment: parenchymal signal enhancement ratio (SER) around the tumor on preoperative MRI.
ConclusionIn addition to ER negativity, a higher parenchymal SER on preoperative MRI was an independent factor associated with subsequent IBTR in patients with breast cancer who had undergone breast-conserving treatment. PMID: 23550189 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - April 2, 2013 Category: Radiology Authors: Kim MY, Cho N, Koo HR, Yun BL, Bae MS, Chie EK, Moon WK Tags: Acta Radiol Source Type: research

Effects of magnetically labeled exogenous endothelial progenitor cells on cerebral blood perfusion and microvasculature alterations after traumatic brain injury in rat model.
CONCLUSION: The intravenously transplanted EPCs diminish the brain injury through restoring cerebral blood perfusion and increasing the cerebral microvasculature in the injured region in rat model with TBI. PMID: 23528570 [PubMed - indexed for MEDLINE] (Source: Acta Radiologica)
Source: Acta Radiologica - April 1, 2013 Category: Radiology Authors: Chen X, Yin J, Wu X, Li R, Fang J, Chen R, Zhang B, Zhang W Tags: Acta Radiol Source Type: research

Acute myocardial infarct detection with dual energy CT: correlation with single photon emission computed tomography myocardial scintigraphy in a canine model.
Abstract BACKGROUND: Dual-energy CT (DECT) has been used to detect myocardial infarct. However, few comparable studies with histopathological findings as gold standard have been published. PURPOSE: To investigate the accuracy of DECT iodine maps for detecting acute myocardial infarction compared with single photon emission computed tomography (SPECT) in a canine model using histopathological findings as the reference standard. MATERIAL AND METHODS: A model of myocardial ischemia was created by ligating the left anterior descending (LAD) coronary artery after thoracotomy in six dogs, while another three d...
Source: Acta Radiologica - April 1, 2013 Category: Radiology Authors: Peng J, Zhang LJ, Schoepf UJ, Gibbs KP, Ji HS, Yang GF, Zhu H, Lu GM Tags: Acta Radiol Source Type: research

Usefulness of a guiding sheath for fluoroscopic stent placement in patients with malignant gastroduodenal obstruction.
Abstract BACKGROUND: Self-expandable metallic stent placement is widely used to manage malignant gastroduodenal obstructions. However, there are difficulties in negotiating a guidewire (GW) and a stent delivery system (SDS). PURPOSE: To investigate feasibility, usefulness, and safety of a guiding sheath for fluoroscopic stent placement in patients with malignant gastroduodenal obstructions. MATERIAL AND METHODS: In July 2001 to August 2011, 726 patients with malignant gastroduodenal obstructions underwent stent placement. Guiding sheath was used in patients in whom a GW could not be passed through the ob...
Source: Acta Radiologica - April 1, 2013 Category: Radiology Authors: Park JH, Song HY, Kim MS, Chung R, Kim JH, Na HK, Nam DH Tags: Acta Radiol Source Type: research

Value of cardiac CT in comprehensive aortic valve and root evaluation before percutaneous aortic valve replacement.
ConclusionCardiac CT substantially facilitates the assessment of aortic root morphology prior to aortic valve replacement. PMID: 23535182 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - March 27, 2013 Category: Radiology Authors: Bazeed MF, Rezk AI, Moselhy MS Tags: Acta Radiol Source Type: research

Gastroduodenal artery recanalization after transcatheter fibered coil embolization for prevention of hepaticoenteric flow: incidence and predisposing technical factors in 142 patients.
ConclusionGDA origin recanalization after fibered coil occlusion is common. The distance between the GDA origin and most cephalad coil appears to be a predisposing factor for recanalization. Familiarity with this phenomenon is beneficial to reduce the likelihood of gastrointestinal tract complications during hepatic locoregional therapy. PMID: 23535183 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - March 27, 2013 Category: Radiology Authors: Enriquez J, Javadi S, Murthy R, Ensor J, Mahvash A, Abdelsalam ME, Madoff DC, Wallace MJ, Avritscher R Tags: Acta Radiol Source Type: research