[en] The behavior of contrast enhancement between a microadenoma and the normal pituitary gland after gadolinium injection was evaluated in 12 operatively confirmed cases using a repetitive sequence of four coronal T1-weighted spin echo series (T1 SE) (continuous acquisition, TR = 400 ms), followed by conventional coronal T1 SE (TR = 600 ms) and a three-dimensional fast low-angle shot sequence. The first and second acquisitions were useful with respect to delayed scans only in 3 cases (25%). Nevertheless, in these cases confident diagnosis could also be made on pre-contrast studies, which diminishes the real advantage of this finding. For a 1.5 T MRI unit we advocate starting with coronal T1 SE 30 s after a rapid injection of gadolinium.
Disciplines :
Endocrinology, metabolism & nutrition
Author, co-author :
Stadnik, T.
Stevenaert, Achille ; Centre Hospitalier Universitaire de Liège - CHU > Neurochirurgie
Beckers, Albert ; Université de Liège - ULiège > Département des sciences cliniques > Endocrinologie
Van Herzele, D.
Luypaert, R.
Buisseret, T.
Osteaux, M.
Language :
English
Title :
Contrast behavior between microadenoma and normal pituitary gland after gadolinium injection as a function of time at 1.5 T.
Publication date :
May 1992
Journal title :
Neuroradiology
ISSN :
0028-3940
eISSN :
1432-1920
Publisher :
Springer Science & Business Media B.V., New York, United States - New York
Peck W.W., Dillon W.P., Norman D., Newton T.H., Wilson C.B. (1989) High-resolution MR imaging of pituitary microadenoma at 1.5 T: experience with Cushing diseases. AJR 152:145-151.
Nichols D.A., Laws E.R., Houser O.W., Abboud C.F. (1988) Comparison of magnetic resonance imaging and computed tomography in the preoperative evaluation of pituitary adenomas. Neurosurgery 22:380-385.
Kucharczyk W., Davis D.O., Kelly W.M., Sze G., Norman D., Newton T.H. (1986) Pituitary adenomas: high-resolution MR imaging at 1.5 T. Radiology 161:761-765.
Kulkarni M.V., Lee K.F., McArdle C.B., Yeakley J.W., Haar F.L. (1988) 1.5-T imaging of pituitary microadenomas: technical considerations and CT correlations. AJNR 9:5-11.
Davis P.C., Hoffman J.C., Malko J.A., Tindall G.T., Takei Y., Avruch L., Braun I.F. (1987) Gadolinium-DTPA and MR imaging of pituitary adenoma: a preliminary report. AJNR 8:817-823.
Doppman J.L., Frank J.A., Dwyer A.J. (1988) Gadolinium DTPA enhanced MR imaging of ACTH-secreting microadenomas of the pituitary gland. J Comput Assist Tomogr 12:728-735.
Dwyer A.J., Frank J.A., Doppman J.L. (1987) Pituitary adenomas in patients with Cushing disease: initial experience with Gd-DTPA-enhanced MR imaging. Radiology 163:421-426.
Steiner V.E., Wimberger D., Imhof H., Knosp E., Hajek P. (1989) Gd-DTPA in MR diagnosis of pituitary adenomas. ROFO 150:323-327.
Newton D.R., Dillon W.P., Norman D., Newton T.M., Wilson C.B. (1989) Gd-DTPA-enhanced MR imaging of pituitary adenomas. AJNR 10:949-954.
Bonneville J-F, Cattin F., Moussa-Bacha K., Portha C. (1983) Dynamic computed tomography of the pituitary gland: the “Tuft sign”. Radiology 149:145-148.
Hasegawa T., Ito H., Shoin K., Kogure Y., Kubota T., Yamamoto S. (1984) Diagnosis of an “isodense” pituitary microadenoma by dynamic CT scanning. J Neurosurg 60:424-427.
