Abstract |
Combination of fat suppression techniques with intravenous paramagnetic contrast administration is usually performed using high-field MR systems. We combined a modified three-point Dixon technique for fat suppression with gadolinium-DTPA administration in the investigation of soft tissue neoplasms at 0.5 T. Nineteen patients with 21 neoplasms (14 primary malignant, 2 metastatic, 5 benign tumors) were examined. Examination protocol included unenhanced SE T1, PD and T2-weighted images. After the intravenous administration of gadolinium-DTPA (0.1 mmol/kg), a modified three-point Dixon technique provided three image sets, i.e., conventional T1-weighted SE images, fat-suppressed T1-weighted images and water-suppressed T1-weighted images. Two observers evaluated the lesions for conspicuity and size in three image groups: unenhanced T1-, PD and T2-weighted images, enhanced conventional T1-weighted images, enhanced T1-weighted images with fat suppression. Ten lesions showed greater conspicuity on enhanced fat-suppressed images than on unenhanced T1-, PD and T2- and enhanced conventional T1-weighted images. In 16 cases lesions were more conspicuous on enhanced water images than on conventional enhanced T1 images. Ten tumors exhibited a larger size (difference exceeding 20%) on enhanced fat-suppressed images. The combination of gadolinium with the modified Dixon technique improves the demonstration of soft tissue neoplasms at 0.5 T and allows lesion size to be measured more accurately.
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Authors | L Battolla, V Zampa, M Mascalchi, F Falaschi, P Bagnolesi, C Tessa, A Paolicchi, C Bartolozzi |
Journal | La Radiologia medica
(Radiol Med)
Vol. 88
Issue 4
Pg. 353-8
(Oct 1994)
ISSN: 0033-8362 [Print] Italy |
Vernacular Title | Associazione di gadolinio-DTPA con tecnica di soppressione del grasso nello studio con risonanza magnetica a 0.5 T nelle neoplasie dei tessuti molli. |
PMID | 7997603
(Publication Type: Clinical Trial, English Abstract, Journal Article)
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Chemical References |
- Contrast Media
- Organometallic Compounds
- Pentetic Acid
- Gadolinium DTPA
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Topics |
- Adipose Tissue
- Contrast Media
- Female
- Gadolinium DTPA
- Humans
- Magnetic Resonance Imaging
(methods)
- Male
- Organometallic Compounds
- Pentetic Acid
(analogs & derivatives)
- Soft Tissue Neoplasms
(diagnosis)
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