Abstract:
PURPOSE:To investigate the utility of dual-energy (DE) CT using virtual noncontrast (VNC) and iodine overlay (IO) images to assess therapeutic response to radiofrequency ablation (RFA) for renal cell carcinomas (RCCs). MATERIALS AND METHODS:In this institutional review board-approved study (with waiver of informed consent), 47 patients with RCCs that underwent DECT after RFA were enrolled in this study. DECT protocols included true noncontrast (TNC), linearly blended DE corticomedullary and late nephrographic phase imaging. Two types of VNC and IO images were derived from corticomedullary and late nephrographic phases, respectively. To predict local tumor progression at RFA site, linearly blended and IO images were analyzed both qualitatively and quantitatively. Contrast-to-noise ratios (CNR) of renal cortex-to-RFA zones were calculated. The overall imaging quality of VNC images was compared with TNC images. RESULTS:The IO images from corticomedullary and late nephrographic phases showed excellent diagnostic performance (each sensitivity 100% and each specificity 91.5%) for predicting local tumor progression. The degree of enhancement of local tumor progression was not significantly different between linearly blended and IO images (P>0.05). The mean CT numbers were not significantly different between TNC and VNC images (P>0.05). In renal cortex-to-RFA site, CNR between linearly blended and IO images was not significantly different (P>0.05). The VNC imaging quality from the two phases was given a good rating. CONCLUSION:VNC and IO images from DECT may allow acceptable diagnostic performance with less radiation exposure as a follow-up imaging tool after RFA for RCC, compared to the linearly blended CT images.
journal_name
Eur J Radioljournal_title
European journal of radiologyauthors
Park SY,Kim CK,Park BKdoi
10.1016/j.ejrad.2013.11.022subject
Has Abstractpub_date
2014-02-01 00:00:00pages
e73-9issue
2eissn
0720-048Xissn
1872-7727pii
S0720-048X(13)00612-8journal_volume
83pub_type
杂志文章abstract:INTRODUCTION:This study aims to evaluate "in vivo" the integrity of the normal-appearing spinal cord in patients with neuromyelitis optica (NMO), using diffusion tensor MR imaging, comparing to controls and patients with multiple sclerosis (MS). MATERIALS AND METHODS:We studied 8 patients with NMO and 17 without any n...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2011.11.026
更新日期:2012-10-01 00:00:00
abstract::The intravenous clinical trial program of ioversol (Optiray), a low osmolar, nonionic, monomeric contrast agent characterized by high hydrophilicity, is evaluated on the basis of results from the first clinical trials conducted in Europe as part of the development of the 300 and 350 mgI/ml formulations: 7 double-blind...
journal_title:European journal of radiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/0720-048x(91)90094-c
更新日期:1991-09-01 00:00:00
abstract:PURPOSE:Complete surgical excision is the main factor for successful breast-conserving surgery in patients with ductal carcinoma in situ (DCIS) of the breast. Preoperative magnetic resonance imaging (MRI) may allow surgery optimization in this indication. From an economic standpoint, systematic preoperative MRI is asso...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2020.109058
更新日期:2020-08-01 00:00:00
abstract:PURPOSE:To evaluate the sensitivity and specificity of non-enhanced chest CT to detect reperfusion after pulmonary arteriovenous malformation (PAVM) embolization. MATERIALS AND METHODS:The Institutional Review Board approved this retrospective HIPAA-compliant study and waived the need for patient consent. All consecut...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2015.11.014
更新日期:2016-01-01 00:00:00
abstract::A total of 171 sets of chest radiographs chosen randomly were reviewed independently by two residents in their second year of training, and two experienced radiologists. The degree of interobserver agreement in an overall assessment of pulmonary venous hypertension and in the assessment of five signs, indicative of pu...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/0720-048x(90)90057-i
更新日期:1990-11-01 00:00:00
abstract:AIM:To evaluate the author's experience with the use of diffusion tensor magnetic resonance imaging (DTI) on patients with glial tumors. METHODS:A retrospective evaluation of a group of 24 patients with glial tumors was performed. There were eight patients with Grade II, eight patients with Grade III and eight patient...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2009.03.030
更新日期:2010-06-01 00:00:00
abstract::Lobar collapse is important to diagnose when present, as it may indicate the presence of a central bronchial obstructing lesion. In some instances, its appearance is rather classical and easily diagnosed. In other instances, its appearance can challenge even the most experienced radiologist. In yet other instances, it...
journal_title:European journal of radiology
pub_type: 杂志文章,评审
doi:10.1016/0720-048x(96)01031-5
更新日期:1996-08-01 00:00:00
abstract::In 30 patients with rectal carcinoma the accuracy of computed tomography (CT) and endosonography (ES) was compared with the surgical specimen. Three cases were overstaged by ES and 4 cases were understaged by CT. The accuracy of ES was 84% and of CT only 76%. Both methods had advantages and limitations. An accurate st...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:
更新日期:1989-08-01 00:00:00
abstract::Nephrogenic systemic fibrosis (NSF) is a debilitating disorder seen in-patient with advanced chronic kidney disease (CKD). Recent evidence suggests a link between NSF and the administration of gadolinium-based contrast agents (Gd-CA). In addition, other risk factors have also been suggested to facilitate the developme...
journal_title:European journal of radiology
pub_type: 杂志文章,评审
doi:10.1016/j.ejrad.2008.01.028
更新日期:2008-05-01 00:00:00
abstract:PURPOSE:To evaluate the efficacy of optimized T1-Perfusion MRI protocol (protocol-2) with whole brain coverage and improved spatial resolution using Compressed-SENSE (CSENSE) to differentiate high-grade-glioma (HGG) and low-grade-glioma (LGG) and to compare it with the conventional protocol (protocol-1) with partial br...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2020.109049
更新日期:2020-08-01 00:00:00
abstract::To investigate the relationship between liver glucose, glycogen, and plasma glucose in diabetic patients, in vivo liver carbon-13 magnetic resonance spectroscopy ((13)C MRS) with a clinical 3.0T MR system was performed. Subjects were healthy male volunteers (n=5) and male type-2 diabetic patients (n=5). Pre- and durin...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2008.10.019
更新日期:2010-02-01 00:00:00
abstract:PURPOSE:To investigate the pattern of brain volume changes of the brain in patients with type II diabetes mellitus using voxel-based morphometry. MATERIAL AND METHODS:Institutional ethics approval and informed consent were obtained. VBM based on the high resolution three-dimensional T1-weighted fast spoiled gradient r...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2011.04.025
更新日期:2012-08-01 00:00:00
abstract::A solid dynamic phantom has been constructed, which allows quantitative measurements of the signal-to-noise ratios in processed images from digital subtraction angiography (DSA) units. Profiles of silicone rubber placed in concentric circles on a plate which is rotated in the image plane generates bolus curves with fi...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/0720-048x(90)90104-j
更新日期:1990-07-01 00:00:00
abstract:OBJECTIVE:To analyze the observer reproducibility of breast strain elastography in elasticity image acquisition and elasticity image interpretation. METHODS:This was an institutional ethics committee approved prospective study. One hundred twenty-four breast lesions in 118 women (mean age 45.39 ± 12.97 years old, rang...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2018.02.025
更新日期:2018-04-01 00:00:00
abstract:PURPOSE:To retrospectively evaluate agreement between modified RECIST (mRECIST) assessed at Computed Tomography (CT) and pathology in a large series of patients with hepatocellular carcinoma (HCC) who were transplanted after transarterial chemoembolization (TACE). MATERIALS AND METHODS:IRB approval was obtained. The s...
journal_title:European journal of radiology
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.ejrad.2012.12.009
更新日期:2013-05-01 00:00:00
abstract::Arterial embolisation was performed in five paediatric patients. Indications were hypersplenism in two, gastrointestinal bleeding in two and treatment of an aneurysmal bone cyst in one. Embolisation provided definitive treatment in each case with no complications. ...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:
更新日期:1984-05-01 00:00:00
abstract:PURPOSE:To evaluate retrospectively the prognostic significance of lymph node parameters assessed on pretreatment magnetic resonance (MR) images for development of distant metastases in patients with head and neck squamous cell carcinomas. MATERIALS AND METHODS:Pretreatment MR images of 311 patients were retrospective...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2006.05.019
更新日期:2006-10-01 00:00:00
abstract:PURPOSE:To examine factors associated with one step surgery in case of non-palpable breast cancer. MATERIALS AND METHODS:Clinical data of 152 consecutively diagnosed patients with breast cancer were analyzed retrospectively. Preoperative diagnostic findings were divided in subgroups: mammographically visible mass/micr...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2007.02.033
更新日期:2007-12-01 00:00:00
abstract:OBJECTIVE:The aim of this retrospective study was to evaluate performance of computer-aided detection (CAD) with full-field digital mammography (FFDM) in detection of breast cancers. MATERIALS AND METHODS:CAD was retrospectively applied to standard mammographic views of 127 cases with biopsy proven breast cancers dete...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2009.08.024
更新日期:2011-03-01 00:00:00
abstract::The aim of this prospective study was to assess the accuracy of modern ultrasonography in diagnostic imaging of meniscal tears. One hundred and sixty menisci were evaluated in 80 patients (42 females, 38 males, mean age=36.2 years, range=16-70 years). Inclusion criteria for the study were twofold: clinical suspicion o...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2011.09.013
更新日期:2012-09-01 00:00:00
abstract:OBJECTIVES:To examine the efficacy of qualitative shear wave elastography (SWE) in the classification and evaluation of solid breast masses, and to compare this method with conventional ultrasonograghy (US), quantitative SWE parameters and qualitative SWE classification proposed before. METHODS:From April 2015 to Marc...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2016.12.021
更新日期:2017-02-01 00:00:00
abstract::The purpose of this study was to retrospectively evaluate the feasibility of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) to differentiate between ductal carcinoma in situ (DCIS) and mastopathy by analyzing their time-intensity curves (TICs) using the two-compartment pharmacokinetic model with an ass...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2010.09.039
更新日期:2011-12-01 00:00:00
abstract:PURPOSE:To assess pulmonary abnormalities in patients with primary Sjogren's syndrome (PSS) using high-resolution computed tomography (HRCT). MATERIAL AND METHODS:The HRCT scans of 24 patients with the diagnosis PSS were retrospectively reviewed regarding the presence, extension and distribution of 16 pathological fin...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2004.01.006
更新日期:2004-11-01 00:00:00
abstract:OBJECTIVES:We investigated the role of novel intra-abdominal parameters measured by computed tomography (CT) in the prediction of clinical outcomes in acute pancreatitis (AP). METHODS:Patients with AP underwent an abdominal CT scan on admission to define different intra-abdominal parameters (abdominal circumference, p...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2020.109327
更新日期:2020-11-01 00:00:00
abstract:OBJECTIVE:To compare conventional T1-weighted imaging (SE-T1) and chemical shift fat-saturation T1-weighted imaging (FS-T1) in the diagnosis of bone metastases. SUBJECTS:Twenty-two patients (101 vertebrae) with non-neoplastic lesions (Group 1) and 21 patients (72 vertebrae) with spinal metastases (Group 2) were evalua...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/0720-048x(93)90041-k
更新日期:1993-09-01 00:00:00
abstract:PURPOSE:To evaluate the opinion and assessment of radiologists, surgeons and medical students on a number of important topics regarding the future of radiology, such as artificial intelligence (AI), turf battles, teleradiology and 3D-printing. METHOD:An online questionnaire was created using the SurveyMonkey platform ...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2019.108742
更新日期:2019-12-01 00:00:00
abstract:BACKGROUND:Velocity-encoding is used to quantify tricuspid regurgitation (TR) by cardiovascular magnetic resonance (CMR), but requires additional dedicated imaging. We hypothesized that size and signal intensity (SI) of the cross-sectional TR jet area in the right atrium in short-axis steady-state free-precession image...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2016.11.025
更新日期:2017-01-01 00:00:00
abstract:PURPOSE:To evaluate a strategy that used thermal-ablation of vertebral metastases (VM) to prevent vertebral related events (VRE) in patients with differentiated thyroid cancer (DTC). METHODS:This single center study retrospectively reviewed records and post-operative imaging of all DTC patients treated with thermal-ab...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2019.108650
更新日期:2019-10-01 00:00:00
abstract::Sarcoidosis is a systemic disease of unknown cause, characterized by widespread non-caseating granulomas. There is a wide spectrum of radiologic manifestations in pulmonary sarcoidosis, providing challenges to radiologists. However, recognition of the key features of sarcoidosis with knowledge of its pathologic backgr...
journal_title:European journal of radiology
pub_type: 杂志文章,评审
doi:10.1016/j.ejrad.2008.09.038
更新日期:2010-01-01 00:00:00
abstract:PURPOSE:To investigate the diagnostic value of retrospective fusion of pelvic MRI and (18)F-fluorodeoxyglucose ((18)F-FDG) PET images for assessment of locoregional extension and nodal staging of endometrial cancer. MATERIALS AND METHODS:Thirty patients with biopsy-proven endometrial cancer underwent preoperative cont...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2013.05.005
更新日期:2013-10-01 00:00:00