Abstract:
BACKGROUND:Gliomas are the most common primary brain tumors in adults, in some cases, radiotherapy may be the preferred treatment option especially for elderly people who cannot endure surgery. Therefore, it is necessary to evaluate the effects of radiotherapy on glioma. Arterial spin labeling (ASL) is an MR imaging technique that allows for a quantitative determination of cerebral blood flow (CBF) noninvasively. Tumor volume is still an important determinant for evaluating treatment response. The purpose of this study was to investigate the relationship between the tumor perfusion parameters and tumor volume and assess the effects of radiotherapy on glioma using pulsed-continuous arterial spin labeling (pcASL) technique. METHODS:35 patients with gliomas, histologically classified as low-grade group (n=16) and high-grade group (n=19), treated with radiotherapy only or before using other therapies were included in this study. MR examinations, including T1 weighted image and pcASL, were performed before and 4, 8, 12, 16 weeks after radiotherapy. Regional CBF of normal tissue, mean tumor blood flow (TBFmean), maximum tumor blood flow (TBFmax), and tumor volume were evaluated at each time point. Both the percentage change in CBF (CBF ratio), TBFmean (TBFmean ratio), TBFmax (TBFmax ratio) and the percentage change in tumor volume (volume ratio) were calculated using values obtained before and after radiotherapy. The correlation between the volume ratio and CBF ratio, TBFmean ratio, TBFmax ratio was assessed using linear regression analysis and Pearson's correlation. RESULTS:The TBFmean and TBFmax of high-grade gliomas were significantly higher than that of low-grade group. In high-grade group, a strong correlation was demonstrated between the tumor volume and the TBFmax before radiotherapy (R2=0.35, rs=0.59, p<0.05). There was also a significant correlation between the TBFmax before radiotherapy and the tumor volume ratio before and 8 weeks after radiotherapy (R2=0.56, rs=-0.74, p<0.05). CONCLUSION:The TBFmax measured using pcASL could assess tumoral grade and also could become a potential tool for evaluating the therapeutic effects of radiation.
journal_name
Eur J Radioljournal_title
European journal of radiologyauthors
Wang P,Li J,Diao Q,Lin Y,Zhang J,Li L,Yang G,Fang X,Li X,Chen Y,Zheng L,Lu Gdoi
10.1016/j.ejrad.2016.08.009subject
Has Abstractpub_date
2016-11-01 00:00:00pages
1987-1992issue
11eissn
0720-048Xissn
1872-7727pii
S0720-048X(16)30248-0journal_volume
85pub_type
杂志文章abstract::This paper discusses ten patients who developed acute cholecystitis during the postoperative period following surgery which did not involve the gall bladder. All were examined with ultrasound during the first two weeks after surgery and were diagnosed as acute cholecystitis. Six (60%) had complications such as empyema...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:
更新日期:1985-02-01 00:00:00
abstract:INTRODUCTION:To describe serial changes in irradiated superior cervical sympathetic ganglia (SCSGs) on MRI (magnetic resonance imaging) evaluation in patients with head and neck squamous cell carcinoma (HNSCC) and to find the features differentiating them from the metastatic retropharyngeal lymph nodes. MATERIALS AND ...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2017.11.008
更新日期:2018-01-01 00:00:00
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...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2007.08.020
更新日期:2008-09-01 00:00:00
abstract:PURPOSE:Multi-slice CT (MSCT) has great potential in evaluation of vascular structures. Our purpose was to investigate if there is any difference in detection of superiorly, inferiorly and horizontally directed small cerebral aneurysms (<5 mm) on MSCTA compared to digital subtraction angiography (DSA) or surgery. MATE...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2004.05.002
更新日期:2005-03-01 00:00:00
abstract:OBJECTIVE:To assess the long-term evolution and predictive factors of type B intramural hematoma (IMH). MATERIAL AND METHODS:34 patients (33 men), mean age: 67 years (47-87) diagnosed with type B IMH by computed tomography (CT) and followed up clinically and by CT yearly. Mean follow-up was 5.9 years (2-13 years). Two...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2011.04.055
更新日期:2012-07-01 00:00:00
abstract::Light food diet and low residual diet with hydration, both combined with Proctosal and Bisacodyl cleansing, were compared in 268 patients in the preparation of the colon for double contrast examination. Low residual diet with hydration resulted in significantly less residual fecal material, no flocculation of the bari...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:
更新日期:1983-08-01 00:00:00
abstract::Transfontanelle ultrasound (US) was done prospectively and analyzed for intra-cranial hemorrhage (ICH) and periventricular leukomalacia (PVL) in 110 premature infants. The babies were divided into two subgroups according to their birth weights (BW): those with BW of 1500 g or less (n = 93) belonged to subgroup A while...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/s0720-048x(96)01151-5
更新日期:1997-12-01 00:00:00
abstract:BACKGROUND:Software for the analysis of left ventricular (LV) volumes and mass using border detection in short-axis images only, is hampered by through-plane cardiac motion. Therefore we aimed to evaluate software that involves longitudinal cardiac motion. METHODS:Twenty-three consecutive patients underwent 1.5-Tesla ...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2008.10.027
更新日期:2010-02-01 00:00:00
abstract:OBJECTIVES:To compare the assessment of global and regional left ventricular (LV) function using 64-slice multislice computed tomography (MSCT), 2D echocardiography (2DE) and cardiac magnetic resonance (CMR). METHODS:Thirty-two consecutive patients (mean age, 56.5+/-9.7 years) referred for evaluation of coronary arter...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2007.03.008
更新日期:2008-01-01 00:00:00
abstract:PURPOSE:To evaluate whether CT findings suggesting active pulmonary tuberculosis correlate with sputum microbiological studies, and to determine whether CT could predict infectivity. MATERIALS AND METHODS:Total 108 patients with active pulmonary tuberculosis were enrolled. We reviewed CT findings and sputum microbiolo...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2015.07.032
更新日期:2015-11-01 00:00:00
abstract:OBJECTIVES:To explore the feasibility of preoperative prediction of vascular invasion (VI) in breast cancer patients using nomogram based on multiparametric MRI and pathological reports. METHODS:We retrospectively collected 200 patients with confirmed breast cancer between January 2016 and January 2018. All patients u...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2018.11.013
更新日期:2019-01-01 00:00:00
abstract::The goal of this study was to explore possible specific mammographic and sonographic features in women with non-puerperal mastitis (NPM), in order to make an accurate diagnosis and prevent unnecessary surgical procedures. From a group of 93 patients with NPM diagnosed between 1987 and 1992, the mammograms of 41, the s...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/0720-048x(95)00699-q
更新日期:1995-12-15 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:OBJECTIVE:To compare fast T1-weighted fluid-attenuated inversion recovery (FLAIR) and T1-weighted turbo spin-echo (TSE) imaging of the degenerative disc disease of the lumbar spine. MATERIALS AND METHODS:Thirty-five consecutive patients (19 females, 16 males; mean age 41 years, range 31-67 years) with suspected degene...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2004.09.009
更新日期:2005-08-01 00:00:00
abstract::The initial localization of metastases in the bone in patients with solid tumors has a relatively good prognosis in comparison with visceral metastasization. The early detection of bone marrow metastases allows for a rapid initiation of therapy and a subsequent reduction in the morbidity rate. Modern MRI is superior t...
journal_title:European journal of radiology
pub_type: 杂志文章,评审
doi:10.1016/j.ejrad.2005.01.016
更新日期:2005-07-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Conventional magnetic resonance imaging (MRI) is sometimes difficult to distinguish primary central nervous system lymphoma (PCNSL) from other malignant brain tumors effectively. The study aimed to evaluate the diagnostic performance of arterial spin labeling (ASL) and dynamic contrast-enhanced (...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2019.01.008
更新日期:2019-03-01 00:00:00
abstract:OBJECTIVE:To evaluate the performance of magnetic resonance (MR) and multidetector computed tomography (MDCT) in the assessment of living donor's vascular and biliary anatomy, having surgical findings as reference standard. METHODS:Thirty-two living liver donors underwent MR cholangiography (1.5-T; standard cholangiog...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2009.07.001
更新日期:2010-11-01 00:00:00
abstract:PURPOSE:To evaluate the additional value of the color coding of dynamic data using the 3TP method in the evaluation of contrast-enhanced breast MRI for readers with different levels of experience. MATERIALS AND METHODS:A total of 52 lesions were included in this study, 25 malignant and 27 benign. All lesions were eval...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2009.03.053
更新日期:2010-06-01 00:00:00
abstract::Computed tomography (CT) has developed a well-recognised role within paediatric uroradiology, especially in imaging of trauma, malignancy (in particular Wilms' tumour), atypical infection, and congenital urogenital abnormalities. CT can also be used for problem solving in nephrolithiasis and renal transplant assessmen...
journal_title:European journal of radiology
pub_type: 杂志文章,评审
doi:10.1016/s0720-048x(02)00115-8
更新日期:2002-08-01 00:00:00
abstract:PURPOSE:To characterize the CT imaging features of head and neck amyloidosis and correlate with extent of disease and clinical outcomes. MATERIALS AND METHODS:This retrospective study included 80 patients with head and neck amyloidosis who underwent soft tissue neck CT imaging between November 2003 and April 2018. The...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2020.109034
更新日期:2020-07-01 00:00:00
abstract:INTRODUCTION:The main role of the radiologist in the management of patients with suspicion of small bowel obstruction is to help triage patients into those that need immediate surgical intervention from those that require medical therapy or delayed surgery. Ultrasound examination is usually considered not helpful in bo...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2003.11.009
更新日期:2004-04-01 00:00:00
abstract:INTRODUCTION:Radiotherapy is increasingly used for both curative and palliative treatment of oesophageal malignancy. Accurate treatment depends on determining tumour location and length. This study assessed the value of PET-CT versus other staging modalities in determining tumour length. MATERIALS AND METHODS:Oesophag...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2014.10.014
更新日期:2015-02-01 00:00:00
abstract:PURPOSE:We found several cases with unexpected pulmonary abnormalities on the 18F-FDG PET scan after the gastrointestinal endoscopy with sedation during a compact health check-up course, interfering the interpretations of 18F-FDG PET scan for cancer screening. The current studies aimed to analyze the incidence and the ...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2010.10.030
更新日期:2011-12-01 00:00:00
abstract:PURPOSE:This study aimed at evaluating the computed tomography (CT) characteristics of resolving localized ground-glass opacities (GGOs) in a screening programme for lung cancer. MATERIAL AND METHODS:280 patients at high-risk for lung cancer (221 men, 59 women; mean age, 58.6 years), divided into four groups (lung can...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2009.09.008
更新日期:2011-03-01 00:00:00
abstract:OBJECTIVE:To describe the computed tomography (CT) and magnetic resonance (MR) features of corpus callosum (CC) infarctions. METHODS:We reviewed retrospectively 352 consecutive cranial CT and MR scans showing cerebral infarcts. Involvement of the CC was identified in 28 patients. RESULTS:Infarctions of the CC were di...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/s0720-048x(96)01155-2
更新日期:1997-07-01 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:PURPOSE:To evaluate the awareness of radiation protection issues and the knowledge of dose levels of imaging procedures among medical students, radiology residents, and radiography students at an academic hospital. MATERIAL AND METHODS:A total of 159 young doctors and students (including 60 radiology residents, 56 med...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2016.10.033
更新日期:2017-01-01 00:00:00
abstract::To introduce an easy and improved technique for performing ductography using inexpensive easily available intravenous cannula. Guide wire: Prolene/Surgipro 3-0 (Polypropylene mono filament non-absorbable surgical suture). A plastic 26 G intravenous cannula. Disposable syringe 2 ml. Non-ionic contrast (low density like...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2011.03.050
更新日期:2012-07-01 00:00:00
abstract::Vertebral insufficiency fractures may result from excessive loading of normal and routine loading of osteoporotic spines. Fracture occurs when the mechanical load exceeds the vertebral compressive strength, i.e., the maximum load a vertebra can tolerate. Vertebral compressive strength is determined by trabecular bone ...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/0720-048x(91)90047-y
更新日期:1991-07-01 00:00:00
abstract:PURPOSE:To verify the feasibility of synthetic MRI in quantitative evaluation of lumbar intervertebral disk (IVD) degeneration, as compared to the conventional CarrPurcell-Meiboom-Gill (CPMG) T2 mapping approach. METHODS:Twenty-four patients with chronic low back pain participated in this study. Patients underwent rou...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2020.108858
更新日期:2020-03-01 00:00:00