【磁共振成像 2022年04期】 目的 研究18F-氟代脱氧葡萄糖(fluorodeoxyglucose,FDG)正电子发射断层成像(positron emission tomography,PET)/MR多模态成像对肿瘤样脱髓鞘病(tumefactive demyelinating lesions,TDL)的诊断价值。 材料与方... 出版日期: 2022年04月 10.急性和缓解期多发性硬化全脑的相干局部一致性研究 朱...
【磁共振成像 2022年04期】 目的 研究18F-氟代脱氧葡萄糖(fluorodeoxyglucose,FDG)正电子发射断层成像(positronemission tomography,PET)/MR多模态成像对肿瘤样脱髓鞘病(tumefactive demyelinatinglesions,TDL)的诊断价值。 材料与方... 出版日期: 2022年04月 10.急性和缓解期多发性硬化全脑的相干局部一致性研究 朱艳艳...
In clinical studies, blood-brain barrier leakage, a marker of acute inflammation in the central nervous system (CNS), can be tracked by in vivo gadolinium enhancement on a T1-weighted magnetic...Marc D. BinderNobutaka HirokawaUwe Windhorst...
Using T1-weighted and T2-weighted imaging sequences it was disclosed that 14 of 19 patients had lesions and that enhancement was seen in seven patients. It is known that patients with AMON and silent lesions in the CNS have a highly increased risk of developing multiple sclerosis (MS) later...
The lesions were segmented manually using 3D-Slicer (version 4.10.2), and the arterial phases and portal venous phase of T1 images were used to indicate the volume of interest (VOIs) by drawing the outline of tumour tissues layer-after-layer and avoiding bile duct and vessels by radiologist ...
Histopathology data of the treated mice tissues did not show apparent abnormalities or lesions in the heart, kidney, liver, and spleen, as compared to the control groups. It was concluded that Gd-CDs exhibited good biocompatibility and were suitable for further bioapplication31. Also, Gd ...
Twenty-eight patients with tumours of the larynx, divided into supraglottic, glottic, and subglottic lesions, and of the hypopharynx were examined by different MRI techniques using the paramagnetic contrast medium Gd-DTPA. The results of preoperative MRI were compared with clinical laryngoscopy and ...
Pharmacokinetic analysis of Gd-DTPA enhancement in dynamic three-dimensional MRI of breast lesions. J Magn Reson Imaging 1997; 7: 702-715.den Boer JA, Hoenderop RK, Smink J, et al. Pharmacokinetic analysis of Gd-DTPA enhancement in dynamic three-dimensional MRI of breast lesions. J Magn ...
The authors measured image contrast between lesions and adjacent fatty tissue and compared postcontrast STIR and T1-weighted spin-echo (T1-W SE) images. When the signal intensity of a lesion is 80% of adjacent fatty tissue on postcontrast T1-W SE, short TR STIR images provide better tumor ...
Gd-DTPA is a paramagnetic contrast agent for MR that produces enhancement of lesions on T1-weighted images. Since it does not cross the intact blood-brain barrier (BBB), Gd-DTPA enhances only those pathologic processes that are associated with breakdown of the BBB and structures or lesions that...