Abstract:
OBJECTIVES:Various percent canal occlusion measurement methods have been used to assess the spinal canal stenosis following a thoracolumbar burst fracture. However, there are no studies performed comparing these techniques. The objective of this study was to determine the reliability of three techniques used to measure the spinal canal stenosis in thoracolumbar burst fractures on lateral radiograph and CT scans, and to identify the most reliable and practical method of assessment. METHODS:Fifty preoperative lateral radiographs and axial computed tomography (CT) scans of thoracolumbar burst fractures were analyzed by five observers in two sessions. The three measurement techniques were tested: the ratio of sagittal diameter of spinal canal at the injury level to that at the adjacent level on lateral plain radiographs (Ratio 1) and on axial CT scans (Ratio 2); and the ratio of cross-sectional area of spinal canal at the injury level to that at the adjacent level on axial CT scans (Ratio 3). Interobserver and intraobserver reliability for each measure was assessed. RESULTS:Greater coefficient of variation (CV) of measurement was founded for the Ratio 1 obtained from lateral plain radiographs than the other two ratios (Ratio 2 and 3) from CT scans (P<0.05), while no differences of CV were noted between the Ratio 2 and Ratio 3 with CT scans (P>0.05). There was no significant improvement (P>0.05) of the interobserver agreement after a 3-month interval for all three methods. A high significant positive correlation was observed between Ratio 1 and Ratio 2, Ratio 1 and Ratio 3, and Ratio 2 and Ratio 3 (P<0.05 for all). CONCLUSIONS:CT scans are more reliable than plain radiographs in the evaluation of spinal canal occlusion in thoracolumbar burst fractures although the agreement might be acceptable for the latter. Measurement of sagittal diameter of spinal canal using CT scan might be a more reasonable choice than of cross-sectional area of spinal canal because of its simplicity and comparable measurement reliability.
journal_name
Eur J Radioljournal_title
European journal of radiologyauthors
Dai LY,Wang XY,Jiang LSdoi
10.1016/j.ejrad.2007.08.020subject
Has Abstractpub_date
2008-09-01 00:00:00pages
526-30issue
3eissn
0720-048Xissn
1872-7727pii
S0720-048X(07)00421-4journal_volume
67pub_type
杂志文章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:PURPOSE:The purpose of this retrospective study was to examine the reliability of virtually estimated abdominal blood volume using segmentation from postmortem computed tomography (PMCT) data. MATERIALS AND METHODS:Twenty-one cases with free abdominal blood were investigated by PMCT and autopsy. The volume of the bloo...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2011.09.014
更新日期:2012-09-01 00:00:00
abstract:OBJECTIVE:Various degrees of aortic valve rotation may be seen in individuals with no history of congenital cardiovascular malformations, but its association with aortic sizes has not been studied. METHODS:Gated computed tomographic (CT angiograms in 217 patients were studied (66.7±15; 22-97 years old)). Aortic diamet...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2017.01.009
更新日期:2017-04-01 00:00:00
abstract::Impalpable breast lesions have always been a challenge for breast surgeons. Stereotactic wire placement is frequently employed for lesion localisation. To improve the accuracy of preoperative localisation in these cases we introduced a supplementary ultrasound scan to identify the exact location of the wire tip. We st...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2006.08.016
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abstract:INTRODUCTION:Time-resolved contrast-enhanced magnetic resonance (MR) angiography (CEMRA) of the intracranial vasculature has proved its clinical value for the evaluation of cerebral vascular disease in cases where both flow hemodynamics and morphology are important. The purpose of this study was to evaluate a combinati...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2010.04.020
更新日期:2011-11-01 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:PURPOSE:To develop and validate an interpretable and repeatable machine learning model approach to predict molecular subtypes of breast cancer from clinical metainformation together with mammography and MRI images. METHODS:We retrospectively assessed 363 breast cancer cases (Luminal A 151, Luminal B 96, HER2 76, and B...
journal_title:European journal of radiology
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journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2006.02.006
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abstract:PURPOSE:To assess radiotherapy (RT)-induced changes in the urethra and periurethral tissues after treatment for prostate cancer (PCa). METHODS AND MATERIALS:This retrospective study included 108 men (median age, 64 years; range, 43-87 years) who received external-beam radiotherapy (EBRT) and/or brachytherapy for PCa a...
journal_title:European journal of radiology
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doi:10.1016/j.ejrad.2013.09.011
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abstract::Perfusion CT was first described in the 1970s but has become accepted as a clinical technique in recent years. In oncological practice Perfusion CT allows the downstream effects of therapies on the tumour vasculature to be monitored. From the dynamic changes in tumour and vascular enhancement following intravenous iod...
journal_title:European journal of radiology
pub_type: 杂志文章,评审
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abstract:PURPOSE:To evaluate the performance of computed tomographic urography (CTU), static-fluid magnetic resonance urography (static-fluid MRU) and combinations of CTU, static-fluid MRU and diffusion weighted imaging (DWI) in the diagnosis of upper urinary tract cancer. MATERIAL AND METHODS:Between January 2010 and June 201...
journal_title:European journal of radiology
pub_type: 社论
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更新日期:2014-06-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2012.11.023
更新日期:2013-04-01 00:00:00
abstract:OBJECTIVES:Structural and functional changes in pulmonary vessels are prevalent at the initial stages of chronic obstructive pulmonary disease (COPD). These vascular alterations can be assessed using cross-sectional area (CSA) of small pulmonary vessels. However, neither in non-COPD smokers nor in COPD patients it has ...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2013.05.022
更新日期:2013-10-01 00:00:00
abstract:PURPOSE:To assess the performance of machine learning (ML)-based magnetic resonance imaging (MRI) radiomics analysis for discriminating between uveal melanoma (UM) and other intraocular masses. METHODS:This retrospective study analyzed 245 patients with intraocular masses (165 UMs and 80 other intraocular masses). Rad...
journal_title:European journal of radiology
pub_type: 杂志文章
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journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2011.02.066
更新日期:2012-06-01 00:00:00
abstract:OBJECTIVES:To retrospectively evaluate the diagnostic performance of morphological signs observed on conventional magnetic resonance (MR) imaging to differentiate benign from malignant peripheral solid tumors of soft tissue with myxoid stroma. METHODS:MR images from 95 consecutive histopathologically proven tumors (26...
journal_title:European journal of radiology
pub_type: 杂志文章
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更新日期:2016-10-01 00:00:00
abstract:PURPOSE:To investigate the usefulness of T2* mapping of liver on gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid (Gd-EOB-DTPA)-enhanced MRI for estimating liver function. MATERIALS AND METHODS:33 patients were classified into 3 groups as follows: normal liver function (NLF) (n = 7); mild liver damage (MLD)...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2011.03.073
更新日期:2012-07-01 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 associations between imaging features of tumors and age, gender and body mass index (BMI) in patients with renal cell carcinoma. METHOD:This IRB-approved, HIPAA-compliant study included 1348 patients with histopathologically confirmed renal cell carcinoma of the clear cell subtype (ccRCC, n = 90...
journal_title:European journal of radiology
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journal_title:European journal of radiology
pub_type: 杂志文章
doi:
更新日期:1983-08-01 00:00:00
abstract:BACKGROUND:Maintenance of mucosal healing is a primary goal when treating Crohn's disease (CD). Endoscopy is the most precise method for the assessment of mucosal healing, but is considered overly invasive for patients with CD. In contrast, CT enterography (CTE) is less invasive, but little is known about the correlati...
journal_title:European journal of radiology
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journal_title:European journal of radiology
pub_type: 临床试验,杂志文章
doi:10.1016/j.ejrad.2008.03.021
更新日期:2009-07-01 00:00:00
abstract::Bone marrow oedema is associated with a wide variety of pathological processes including both benign and malignant bone tumours. This imaging finding in relation to intraosseous tumours can aid in providing a more focused differential diagnosis. In this review, we will discuss the MR imaging of bone marrow oedema surr...
journal_title:European journal of radiology
pub_type: 杂志文章,评审
doi:10.1016/j.ejrad.2008.01.052
更新日期:2008-07-01 00:00:00
abstract:OBJECTIVES:To determine the improvement of emphysema quantification with density correction and to determine the optimal site to use for air density correction on volumetric computed tomography (CT). METHODS:Seventy-eight CT scans of COPD patients (GOLD II-IV, smoking history 39.2±25.3 pack-years) were obtained from s...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2012.02.021
更新日期:2014-01-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.ejrad.2011.11.016
更新日期:2012-10-01 00:00:00
abstract::To investigate whether there are significant changes in regional brain metabolism in patients with Parkinson's disease before and after thalamotomy using proton magnetic resonance spectroscopy (1H MRS). Fifteen patients underwent 15 stereotactic thalamotomies for control of medically refractory parkinsonian tremor. Si...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/s0720-048x(02)00211-5
更新日期:2003-09-01 00:00:00
abstract::Volumetric CT data acquisition has had a major impact on the practice of computed tomography. This article reviews the current state of knowledge of the applications of this technique to the chest disease summarising its clinical impact on the assessment of lung and airways diseases, mediastinal abnormalities (excludi...
journal_title:European journal of radiology
pub_type: 杂志文章,评审
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更新日期:1998-08-01 00:00:00
abstract:BACKGROUND:CT perfusion imaging has been used in diagnosis and classification of tumors widely and in assess tumor angiogenesis in some organs. However, there are few reports describing CT perfusion imaging of adrenal gland tumors. OBJECTIVE:This study aimed to evaluate the application of CT perfusion imaging in analy...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2010.12.072
更新日期:2012-03-01 00:00:00
abstract::Congenital eventration of the diaphragm, as a cause of mediastinal mass, is an unusual condition and it may be unilateral or bilateral. Although this entity is frequently asymptomatic and firstly detected on the chest radiography, it may be difficult to distinguish a partial eventration from the other diaphragmatic le...
journal_title:European journal of radiology
pub_type: 杂志文章,评审
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更新日期:2004-07-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The application of a fluid-attenuated inversion-recovery pulse with a conventional diffusion-weighted MRI sequence (FLAIR DWI) decreases the partial volume effects from cerebrospinal fluid on apparent diffusion coefficient (ADC) measurements. For this reason, FLAIR DWI may be more useful in the e...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2009.11.029
更新日期:2010-08-01 00:00:00