Portrayal of pheochromocytoma and normal human adrenal medulla by m-(123I)iodobenzylguanidine: concise communication

Journal Article · Sun Apr 01 04:00:00 EST 1984 · J. Nucl. Med.; (United States)

OSTI ID:5678725

Lynn, M D; Shapiro, B; Sisson, J C; Swanson, D P; Mangner, T J; Wieland, D M; Meyers, L J; Glowniak, J V; Beierwaltes, W H

The radiopharmaceutical m-(131I)iodobenzylguanidine (I-131 MIBG), which is readily taken up by adrenergic vesicles, produces scintigraphic images of pheochromocytomas in man but rarely visualizes normal adrenal glands. Iodine-123 has many potential advantages over I-131 as a radiolabel for MIBG, including shorter half-life, freedom from beta emissions, and increased gamma-camera efficiency. In this study, diagnostic doses of MIBG labeled with I-131 and I-123, with nearly equivalent radiation dosimetry, were compared as imaging agents in eight patients with known or suspected pheochromocytoma. Images of superior quality were obtained with I-123 MIBG, and lesions not visualized using I-131 MIBG were portrayed. In addition, the normal adrenal medullae were visualized on the I-123 MIBG scintigrams in six out of eight patients.

• OSTI ID: 5678725
• Journal Information: J. Nucl. Med.; (United States), Journal Name: J. Nucl. Med.; (United States) Vol. 4; ISSN JNMEA
• Country of Publication: United States
• Language: English

Related Subjects

550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
62 RADIOLOGY AND NUCLEAR MEDICINE
ADRENAL GLANDS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BODY
CARBONIC ACID DERIVATIVES
CARDIOVASCULAR DISEASES
COMPARATIVE EVALUATIONS
COUNTING TECHNIQUES
DAYS LIVING RADIOISOTOPES
DIAGNOSIS
DIAGNOSTIC TECHNIQUES
DIAGNOSTIC USES
DISEASES
DRUGS
ELECTRON CAPTURE RADIOISOTOPES
ENDOCRINE GLANDS
GLANDS
GUANIDINES
HOURS LIVING RADIOISOTOPES
HYPERTENSION
IMAGES
INTERMEDIATE MASS NUCLEI
IODINE 123
IODINE 131
IODINE ISOTOPES
ISOTOPES
LABELLED COMPOUNDS
NEOPLASMS
NUCLEI
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANS
PATIENTS
RADIOISOTOPE SCANNING
RADIOISOTOPES
RADIOPHARMACEUTICALS
SCINTISCANNING
SYMPTOMS
USES
VASCULAR DISEASES