Abstract
Objective: In this study our purpose was to compare efficiency in detecting microadenoma between conventional unenhanced MRI and contrast-enhanced MRI with dynamic fast spin- echo method.
Methods: Thirty-two patients with suspected pituitary microadenoma had unenhanced, dynamic fast spin-echo contrast enhanced and conventional contrast-enhanced MR imaging of the pituitary gland. All MR studies were reviewed for the presence or absence of any pituitary focal pathological intensity consistent with microadenoma.
Result: A pituitary lesion consistent in
appearance with a microadenoma was detected on dynamic fast spin-echo images in 17 of the 32 patients, on unenhanced images in 8 patients, and on conventional contrast-enhanced images in 11 patients.
Conclusion: Dynamic fast spin-echo imaging is a useful supplemental sequence in patients undergoing MR imaging because of pituitary endochrinopathy. It may show lesions that might otherwise escape detection.
Key Words: Magnetic resonance imaging, Pituitary microadenoma, Dynamic MRI
References
- Sakamoto Y, Mutsumasa T, Korogi Y, Bussaka if, Ushio Y. normal and abnormal pituitary glands: gadopentetate dimegiumin-enhanced MR imaging. Radiology 1991;I 78:441-445.
- Miki Y, Matsuo M, Sadahiko H, et al. Pituitary adenomas and normal pituitary tissue: enhancement patterns on gadopentetate- enhanced MR imaging. Radiology 1990;177:35-38.
- Finelli DA, Kaufmann B. Varied microcirculation of pituitary adenomas at rapid, dynamic, contrast-enhanced MR imaging. Radiology 1993; 189:205-210.
- Stadnik T, Stevennaert A, Beckers A, Luypaert R, Buisseret T, Osteaux M. Pituitary microadenomas: diagnosis with two- and three-dimentional MR imaging at 1.5T before and after injection of gadoiium. Radiology 1990;176:419-428.
- Davis PC, Hoffman JC Jr, Spencer T, Tindall
- GT, Braun IF. MR imaging of pituitary adenoma: CT, clinical, and surgical
- correlation. AJR 1987; 148:797-802.
- Hewton DR, Dillon WP, Horman D, Hewton TH, Wilson CB. Gd-DTPA-enhanced MR imaging of pituitary adenomas. AJHR 1989; 10:949-954.
Abstract
References
- Sakamoto Y, Mutsumasa T, Korogi Y, Bussaka if, Ushio Y. normal and abnormal pituitary glands: gadopentetate dimegiumin-enhanced MR imaging. Radiology 1991;I 78:441-445.
- Miki Y, Matsuo M, Sadahiko H, et al. Pituitary adenomas and normal pituitary tissue: enhancement patterns on gadopentetate- enhanced MR imaging. Radiology 1990;177:35-38.
- Finelli DA, Kaufmann B. Varied microcirculation of pituitary adenomas at rapid, dynamic, contrast-enhanced MR imaging. Radiology 1993; 189:205-210.
- Stadnik T, Stevennaert A, Beckers A, Luypaert R, Buisseret T, Osteaux M. Pituitary microadenomas: diagnosis with two- and three-dimentional MR imaging at 1.5T before and after injection of gadoiium. Radiology 1990;176:419-428.
- Davis PC, Hoffman JC Jr, Spencer T, Tindall
- GT, Braun IF. MR imaging of pituitary adenoma: CT, clinical, and surgical
- correlation. AJR 1987; 148:797-802.
- Hewton DR, Dillon WP, Horman D, Hewton TH, Wilson CB. Gd-DTPA-enhanced MR imaging of pituitary adenomas. AJHR 1989; 10:949-954.
Details
| Journal Section | Original Research |
|---|---|
| Authors | |
| Publication Date | December 3, 2016 |
| Published in Issue | Year 2001 Volume: 14 Issue: 1 |