Abstract | BACKGROUND: METHODS: Fifteen patients with AGC were imaged with a 1.0-T MR imager and body-array coil. All patients underwent surgery or laparascopic biopsy. Fast low-angle shot (FLASH), half-Fourier single-shot turbo spin-echo (HASTE), and true fast imaging with steady-state precession time ( FISP) images were obtained after ingestion of 900 mL tap water in each patient, followed by postcontrast FLASH images after additional ingestion of gadopentetate dimeglumine ( Gd-DTPA). Qualitative analysis including T-staging of AGC and scoring of imaging quality and quantitative analysis were performed prospectively. RESULTS: In image quality and diagnostic accuracy of T-staging, FLASH imaging showed results slightly superior to those of other imaging modalities, and there was no great difference between using water and Gd-DTPA as an oral contrast agent. As for cancer-to-gastric lumen contrast-to-noise ratio (CNR), HASTE and true FISP imaging were superior to FLASH imaging with Gd-DTPA (p < 0.0001). In cancer-to-pancreas CNR, FLASH imaging without Gd-DTPA showed the best result. CONCLUSIONS: The use of Gd-DTPA as a positive contrast agent may not be imperative, and T1-weighted FLASH imaging in combination with true FISP imaging with ingestion of tap water can be very useful in evaluating AGC with MR imaging.
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Authors | A Y Kim, J K Han, T K Kim, S J Park, B I Choi |
Journal | Abdominal imaging
(Abdom Imaging)
2000 Jan-Feb
Vol. 25
Issue 1
Pg. 7-13
ISSN: 0942-8925 [Print] United States |
PMID | 10652914
(Publication Type: Comparative Study, Journal Article)
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Chemical References |
- Contrast Media
- Water
- Gadolinium DTPA
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Topics |
- Administration, Oral
- Adult
- Aged
- Biopsy
- Contrast Media
- Diagnosis, Differential
- Female
- Gadolinium DTPA
(administration & dosage)
- Humans
- Laparoscopy
- Magnetic Resonance Imaging
(methods)
- Male
- Middle Aged
- Prospective Studies
- Stomach
(pathology)
- Stomach Neoplasms
(diagnosis, surgery)
- Water
(administration & dosage)
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