MATERIALS AND METHODS Synthesis of radioiodinated p-IBG and m-IBG. The synthesis
and determination of radiochemical purity of the radiolabeled compounds used in this study …

Methods In vitro techniques.[†231] sodiumiodide'was prepared by the 1271 (p. Sn) â€
23Xemethod; 1231prepared in this manner contained 0.12% ±0.25% 1251and possibly a …

PRELIMINARY NOTE Imaging the Adrenal Medulla with an 1-131-labeled Antladrenerglc Agent
Page 1 Adrenal-medullary imaging agents have been ac tively pursued by our laboratory and …

Fourteen 126I-labeled aralkylguanidines were synthesized and evaluated as potential
imaging agents for the adrenal medullae and tumors of adrenomedullary origin. These …

Metaiodobenzylguanidine as an Index of the Adrenergic Nervous System Integrity and Function
Page 1 SPECIAL CONTRIBUTIONS Metaiodobenzylguanidine as an Index of the Adrenergic …

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

II 3 1 M IBG images obtained by previous methods (11, 12)
from84patientsreferredtoourcenterforsus pected pheochromocytomas between June 1980 …

MATERIALS AND METHODS NE and MIBG Nonradiolabeled levo@ NEt and levo-[ring-2, 5,
6-3H] NE1 with a specific activity of 40 to 60 Ci/mmol were obtained from commercial …

Metaiodobenzylguanidine (MIBG) is actively concentrated in adrenergic neuroendocrine
tissues and tumors by an active, energyand sodium‐dependent, high‐affinity, saturable …

METHODS Iodine-l23 produced by the 1271 (p, 5n) †23Xe— 1231 reaction was obtained
commercially. t Meta-['231] io dobenzylguanidine (m-['231] IBG) was prepared by a method …