Abstract
PURPOSE: To assess the diagnostic value of parametric magnetic resonance images that display the first pass (FP) of gadopentetate dimeglumine. MATERIALS AND METHODS: Dynamic, contrast material-enhanced, fast low-angle shot MR imaging was performed of 100 musculoskeletal lesions in 36 female and 64 male patients (aged 9-81 years [mean, 34 years]). The highest slope value of the time-intensity curve was calculated pixel by pixel and displayed on the FP image, with a gray-scale value equal to the slope value. Tissue vascularization and perfusion were evaluated at pathologic and angiographic examinations in 33 lesions. RESULTS: A significant difference (P < .001) was found between the FP slope values of benign (mean, 36.2% per second) and malignant (mean, 67.4% per second) lesions. FP images depicted tissue vascularization and perfusion rather than benignity or malignancy, because there is an overlap in the slope values of highly vascular benign lesions and malignant lesions. CONCLUSION: FP images provide diagnostically useful information by depicting tissue vascularization and perfusion.
| Original language | English |
|---|---|
| Pages (from-to) | 835-843 |
| Number of pages | 9 |
| Journal | Radiology |
| Volume | 192 |
| Issue number | 3 |
| Publication status | Published - Sept 1994 |
| Externally published | Yes |
Keywords
- Bones, MR, 40.12143
- Enchondroma, 40.351
- Ewing sarcoma, 40.3281
- Gadolinium
- Magnetic resonance (MR), perfusion study
- Muscles, MR, 40.12143
- Osteosarcoma, 40.322
- Soft tissues, MR, 40.12143