RESULTS Eight patients who met our criteria for inclusion in the study were identified. Their
clinical details are sum marized in Table 1, and their biochemical data in Table 2. Cases …

MATERIALS AND METHODS Of the six patients in this study, two had paragangliomas,
three had pheochromocytomas, and one had a ganglioneuroblastoma. In two patients, the …

MATERIALS AND METHODS Iodine-131 MIBG scintigraphy was performed using pre
viously described techniques (2, 4, 28). Each patient was in jected intravenously with 0.5 …

MATERIALS AND METHODS Patienf population, image selection, and grading of heart
intensity. We examined the 1-131 MIBG posterior abdominal images from 168 patients (86 …

METHODS Sclntigraphy. 1-131MIBG was prepared as described by Wie landetal.(6).
Atthetimeofinjection, 2% offreeI-I31waspresent in the preparation. A dose of486 zCi (18 …

Iodine-131 MIBG scintigraphy Iodine-i 31MIBG was synthesized by the method of Wieland et
al.(31) and had a specific activity of at least I. 8 mCi/mg and was administered by slow iv …

Thirty-one adult patients with clinical findings suggestive of pheochromocytoma were
studied with I-123 MIBG. All patients had images obtained at 24 and 48 hours. Five patients …

We used a new radiopharmaceutical agent,[131I] meta-iodobenzylguanidine ([131I] MIBG),
to produce scintigraphic images of pheochromocytomas in eight patients. One day or more …

The radiopharmaceutical m-[131I] iodobenzylguanidine (I-131 MIBG), which is readily taken
up by adrenergic vesicles, produces scintigraphic images of pheochromocytomas in man …

Following a case report that oral nifedipine can suppress the secretion of noradrenaline by
phaeochromocytoma, we examined the effect of nifedipine on the tumour kinetics of tracer …