Abstract:
OBJECTIVE:To evaluate feasibility of using GRAPPA to acquire high-resolution 3D contrast-enhanced MR angiography (CE-MRA) of hepatic artery and value of GRAPPA for displaying vessels anatomy. MATERIALS AND METHODS:High-resolution CE-MRA using GRAPPA was performed in 67 orthotopic liver transplantation recipient candidates. Signal intensity (SI) and relative SI, i.e., Cv-ro (vessel-to-liver contrast) of the aorta and the hepatic common artery (HCA), were measured. The SI and the relative SI were compared and analyzed using T-test. For purpose of qualitative evaluation, the vessel visualization quality and the order of depicted hepatic artery branches were evaluated by two radiologists independently and assessed by weighted kappa analysis. The depiction of hepatic arterial anatomy and variations was evaluated, and results were correlated with the findings in surgery. RESULTS:The mean SI values were 283.29+/-65.07 (mean+/-S.D.) for aorta and 283.16+/-64.07 for HCA, respectively. The mean relative SI values were 0.698+/-0.09 for aorta and 0.696+/-0.09 for HCA, respectively. Homogeneous enhancement between aorta and HCA was confirmed by statistically insignificant differences (p-values were 0.89 for mean SI values and 0.12 for mean relative SI values, respectively). The average score for vessel visualization ranged from good to excellent for different artery segments. Overall interobserver agreement in the visualization of different artery segments was excellent (kappa value>0.80). The distal intrahepatic segmental arteries were well delineated for majority of patients with excellent interobserver agreement. Normal hepatic arterial anatomy was correctly demonstrated in 53 patients, and arterial anomalies were accurately detected on high-resolution MRA image of all 14 patients. CONCLUSION:High-resolution hepatic artery MRA acquired using GRAPPA in a reproducible manner excellently depicts and delineates small vessels and can be routinely used for evaluating OLT candidates.
journal_name
Eur J Radioljournal_title
European journal of radiologyauthors
Xu PJ,Yan FH,Wang JH,Lin J,Fan Jdoi
10.1016/j.ejrad.2006.11.015subject
Has Abstractpub_date
2007-03-01 00:00:00pages
507-12issue
3eissn
0720-048Xissn
1872-7727pii
S0720-048X(06)00483-9journal_volume
61pub_type
杂志文章abstract:PURPOSE:Hemodynamic features associated with the bleeding from gastric fundal varices (FV) have not been fully examined. The purpose of this study was to elucidate hemodynamics in the short gastric vein (SGV) which is a major inflow route for FV and flow direction of the splenic vein (SV) in relation to bleeding FV. M...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2009.06.024
更新日期:2010-07-01 00:00:00
abstract::Two unusual cases of xanthogranulomatous pyelonephritis studied by both magnetic resonance imaging and computed tomography, are presented. Extension of the disease depicted by both computed tomography and magnetic resonance imaging was compatible with the findings at surgery. Computed tomography seems to be sufficient...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/s0720-048x(97)00084-3
更新日期:1998-08-01 00:00:00
abstract:OBJECTIVES:This study aims to evaluate the radiation exposure to patients undergoing an abdominopelvic or a chest and abdominopelvic (trunk) CT examination and to assess compliance to imaging referral guidelines. METHODS:To this end, 357 standard abdominopelvic and trunk CT scans were collected from 8 Belgian institut...
journal_title:European journal of radiology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.ejrad.2018.12.019
更新日期:2019-02-01 00:00:00
abstract::Radiation exposure from conventional fluoroscopy and from video disc recording was estimated during routine nailing of hip fractures. Mean fluoroscopic time with conventional fluoroscopy was 385 +/- 168 s. and with video disc recording 24 +/- 9 s. The time required for the X-ray system to form one television image, as...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:
更新日期:1981-05-01 00:00:00
abstract:OBJECTIVES:To investigate the feasibility of implementing quantitative T1-perfusion in the routine MRA-protocol and to obtain a first experience in normals and pathology. MATERIALS AND METHODS:For perfusion imaging, IR-prepared FLASH (one 4 mm slice at mid-renal level, TR 4.4 ms, TE 2.2 ms, TI 180 ms, FA 50 degrees , ...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2007.11.033
更新日期:2009-03-01 00:00:00
abstract:PURPOSE:A new macromolecular MR contrast agent, Gd-DTPA-24-cascade-polymer, was assessed for MR angiography of peritumoral vessels in rats. MATERIAL AND METHODS:High resolution 3D-SPGR (TR/TE 100/5ms, alpha = 90 degrees) angiograms were acquired in 10 Fischer rats bearing subcutaneous R3230 mammary adenocarcinomas. MR...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/0720-048x(95)00645-7
更新日期:1995-07-01 00:00:00
abstract:PURPOSE:To investigate radiation exposure in computed tomography (CT)-guided interventions, to establish reference levels for exposure, and to discuss strategies for dose reduction. MATERIALS AND METHODS:We analyzed 1576 consecutive CT-guided procedures in 1284 patients performed over 4.5 years, including drainage pla...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2013.08.035
更新日期:2013-12-01 00:00:00
abstract:PURPOSE:To assess the value of CT-perfusion in determining the quantitative vascularization features of early hepatocellular carcinoma (HCC) in cirrhotic patients. MATERIALS AND METHODS:A total of 35 cirrhotic patients with single histologically proven HCC not exceeding 3cm in diameter underwent conventional triple-ph...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2008.10.014
更新日期:2010-01-01 00:00:00
abstract:OBJECTIVES:To semi-quantitatively assess expiratory air trapping (AT(exp)) and structural changes in the proximal airways in asthma during asthma exacerbation (AE) and to explore the relationships among AT(exp), clinical indices, and proximal airway changes. METHODS:Paired inspiratory-dynamic forced expiratory CT scan...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2015.09.008
更新日期:2015-12-01 00:00:00
abstract:OBJECTIVE:To assess the accuracy of screening US and CT in patients with blunt abdominal trauma admitted to the trauma centre of our General Hospital. MATERIALS AND METHOD:The abdominal US reports of 864 primary trauma patients (139 with major and 725 with minor injuries) and 162 CT reports of a subgroup of the same s...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2005.02.001
更新日期:2005-10-01 00:00:00
abstract::As a special subgroup of multiple intracranial aneurysms, mirror aneurysms are located bilaterally on the corresponding intracranial arteries. The current study sought to compare the clinical and demographic features of patients harboring mirror aneurysm, and to elucidate the corresponding risk factors. We performed a...
journal_title:European journal of radiology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.ejrad.2017.09.015
更新日期:2017-11-01 00:00:00
abstract:OBJECTIVES:The purpose was to evaluate whether BI-RADS (the Breast Imaging Recording and Data System) combined with UE (ultrasound elastography) could improve the differentiation and characterization of benign and malignant breast lesions by comparing with BI-RADS. METHODS:A total of 1080 patients with 1194 breast les...
journal_title:European journal of radiology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.ejrad.2015.08.015
更新日期:2015-12-01 00:00:00
abstract:PURPOSE:Blunt carotid injuries (BCI's) and blunt vertebral artery injuries (BVI's), known jointly as BCVI's, are common in "high risk" patients. The purpose is to evaluate the rate of occurrence of BCI/BVI in patients screened purely by the radiologic criteria of fracture through the carotid canal or vertebral transver...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2007.01.008
更新日期:2007-06-01 00:00:00
abstract:INTRODUCTION:T1 and T2 mapping have been shown to be reliable markers of interstitial myocardial fibrosis, edema, and inflammation. The aim of this study was to evaluate myocardial involvement in acute phase Takotsubo syndrome using native and post-contrast T1 mapping, ECV fraction, and T2 mapping. MATERIAL AND METHOD...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2019.02.026
更新日期:2019-04-01 00:00:00
abstract:PURPOSE:To evaluate the diagnostic performance of susceptibility-weighted magnetic resonance imaging (SWMR) for the differentiation of sclerotic and non-sclerotic Modic changes (MC) of the spine compared to computed tomography (CT) and radiographs. MATERIALS AND METHODS:The Institutional Ethics-Review-Board approved t...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2016.12.024
更新日期:2017-03-01 00:00:00
abstract::Digital vascular imaging is a new technique for vessel investigation. This article describes the application of the method with intravenous administering of the contrast material for the intra- and extracranial arteries and for the abdominal vessels. The equipment and the conditions to obtain good images are described...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:
更新日期:1983-08-01 00:00:00
abstract:PURPOSE:To evaluate potential clinical acceleration factors of Compressed SENSE (CS)1 in direct comparison with SENSE for fat saturated (fs)2, proton density-weighted (PD)3 2D and 3D sequences of the knee. METHOD:Twenty healthy volunteers were scanned with a 3 T scanner, all receiving a standard, fs 2D PD, three CS (C...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2020.109273
更新日期:2020-11-01 00:00:00
abstract::The author argues that, whatever important and rapid developments may be taking place in imaging technologies, there will be a continuing need for X-ray enhancing agents for a considerable time to come. Areas in which there are current developments, such as non-ionic dimers and compact dimers, are surveyed and a look ...
journal_title:European journal of radiology
pub_type: 杂志文章,评审
doi:10.1016/s0720-048x(96)01086-8
更新日期:1996-11-01 00:00:00
abstract:PURPOSE:The purpose of this study was to explore the nature of lesions in the pelvis and the long tubular bones that, with MR imaging, were found to contain both fat and fluid-like signal intensity and to correlate these findings with those of radiography, histologic analysis, and clinical and radiographic follow-up. ...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2004.02.008
更新日期:2005-01-01 00:00:00
abstract::Chiari III malformation is an extremely rare condition, and is characterized by the hindbrain herniation into a low occipital or high cervical encephalocele together with the pathologic and imaging features of the Chiari II malformation. In this report, an unusual variant of the Chiari III malformation was diagnosed i...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/s0720-048x(01)00334-5
更新日期:2001-09-01 00:00:00
abstract::Peripheral neurogenic tumors include neurilemoma, neurinoma, and malignant peripheral nerve sheath tumors. All neurogenic tumors share common imaging features. Although differentiation between them is difficult, neurogenic origin can be suggested from their imaging appearances, including fusiform shape, relation to th...
journal_title:European journal of radiology
pub_type: 杂志文章,评审
doi:10.1016/j.ejrad.2003.12.001
更新日期:2004-12-01 00:00:00
abstract:AIM:To present percutaneous image-guided screw-mediated osteosynthesis (PIGSMO) for fixation of impending fractures (ImF) and non-displaced/mildly displaced pathological/insufficient fractures (PF/InF) of the femoral neck in non-surgical cancer patients. MATERIALS AND METHODS:This is a double-centre single-arm observa...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2017.02.022
更新日期:2017-05-01 00:00:00
abstract::A simple generalization of the diffraction enhanced imaging (DEI) technique, called generalized DEI (GDEI), and its application to tomographic imaging are herein presented. In planar imaging, the GDEI algorithm combines three input images (acquired at different analyzer positions) to deliver three parametric images, p...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2008.04.026
更新日期:2008-12-01 00:00:00
abstract::Lung cancer has increased in incidence throughout the twentieth century and is now the most common cancer in the Western World. It has a poor prognosis, only 10-15% of patients survive 5 years or longer. Outcome is dependent on clinical stage and cancer cell type. Lung cancer is broadly subclassified on the basis of h...
journal_title:European journal of radiology
pub_type: 杂志文章,评审
doi:10.1016/s0720-048x(02)00287-5
更新日期:2003-01-01 00:00:00
abstract::Advanced paediatric ultrasound of the central nervous system (CNS) requires 7 MHz sector and linear transducers, equipment which is highly sensitive to flow velocity (Power Doppler) and additional transcranial axial, coronal and sagittal imaging. New diagnostic possibilities include recognition of subarachnoid hemorrh...
journal_title:European journal of radiology
pub_type: 杂志文章,评审
doi:10.1016/s0720-048x(97)00087-9
更新日期:1998-01-01 00:00:00
abstract:PURPOSE:To assess agreement between trained radiographers and consultant radiologists compared with an index radiologist when reporting on magnetic resonance imaging (MRI) examinations of the knee and lumbar spine and to examine the subsequent effect of discordant reports on patient management and outcome. METHODS:At ...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2013.05.024
更新日期:2013-10-01 00:00:00
abstract:PURPOSE:To assess the efficacy of the developed guideline on reading CT images of malignant pleural mesothelioma for improving radiologists' reading proficiency. MATERIALS AND METHODS:Three radiologists independently read the CT films of 22 cases including definite mesothelioma and non-mesothelioma cases at two times ...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2012.05.022
更新日期:2013-01-01 00:00:00
abstract::Statins are widely used to lower increased cholesterol levels with the aim to prevent major cardiovascular events. However, they bare the risk of myotoxic side effects. We report on two patients with focal weakness and pain in the upper extremities. In both patients, abnormal MRI signal heights in the muscle groups in...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2010.12.031
更新日期:2011-02-01 00:00:00
abstract:OBJECTIVE:To study the correlation between established magnetic resonance (MR) imaging criteria of disease severity in acute pancreatitis and the Acute Physiology And Chronic Healthy Evaluation II (APACHE II) score, and to assess the utility of each prognostic indicators in acute pancreatitis. MATERIALS AND METHODS:In...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2010.08.020
更新日期:2011-12-01 00:00:00
abstract::Two principally different 1000-line CRT (cathode ray tube) monitors connected to a digital image intensifier system for chest radiography were compared in terms of image quality and viewing comfort. Image quality was assessed by means of ROC analysis. Five observers tried to find simulated pathology positioned over th...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/0720-048x(96)00750-4
更新日期:1996-06-01 00:00:00