Contrast-enhanced digital subtraction MRI in musculoskeletal malignant tumors
- VernacularTitle:骨骼肌肉恶性肿瘤增强减影MRI
- Author:
Wei LIN
;
Guohui SHEN
;
Shizheng ZHANG
- Publication Type:Journal Article
- Keywords:
Neoplasms, bone tissue;
Neoplasms, muscle tissue;
Magnetic resonance imaging;
Subtraction technique;
Pathology
- From:
Chinese Journal of Radiology
2000;0(11):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the clinical application of contrast-enhanced digital subtraction MRI in musculoskeletal malignant tumors.Methods Fifty patients with musculoskeletal malignant tumors were scanned by contrast enhanced T 1WI with an injection of Gd-DTPA (0.1 mmol/kg), and digital subtraction was performed between post-contrast-enhanced images and pre-contrast-enhanced images. Musculoskeletal malignant tumors were evaluated by means of a contrast-to-noise ratio (C/Ns). Imaging sign of the musculoskeletal malignant tumors were compared between subtraction MR images and conventional contrast enhanced MR images.Results Contrast-enhanced digital subtraction MR images were better than conventional contrast enhanced MR images. All cases were confirmed by operation or pathology. All the lesions had higher C/Ns on subtraction MR imaging than on conventional contrast enhanced MR images. C/Ns was 109.74?5.10 (?s) for subtraction MR imaging and 23.61?3.16 for conventional contrast enhanced MR images (t=101.51, P
