Thyroid imaging agents: a comparison of I-123 and Tc-99m pertechnetate

Journal Article · Thu Sep 01 00:00:00 EDT 1983 · Radiology; (United States)

DOI:https://doi.org/10.1148/radiology.148.3.6308711· OSTI ID:5672668

Ryo, U Y; Vaidya, P V; Schneider, A B; Bekerman, C; Pinsky, S M

Tc-99m pertechnetate and I-123 were used to perform thyroid scanning in 122 patients with history or clinical evidence of thyroid disease. Thyroid scans were abnormal in all patients, while thyroid palpation was abnormal in all but 19. The quality of thyroid imaging was similar with both agents in 42%, better with I-123 in 18%, and better with Tc-99m in 7%. In the remaining 33% (40 cases), there were discrepancies between Tc-99m and I-123 images. The most frequent discrepancies were ''hot'' or ''warm'' lesions on Tc-99m scans that were ''cold'' or normal on I-123 scans. Results from this study indicate that neither Tc-99m nor I-123 is always superior to the other as a thyroid imaging agent.

• Research Organization: Department of Radiology, Michael Reese Hospital and Medical Center, Chicago, IL
• OSTI ID: 5672668
• Journal Information: Radiology; (United States), Vol. 148:3
• Country of Publication: United States
• Language: English

Related Subjects

62 RADIOLOGY AND NUCLEAR MEDICINE
IODINE 123
COMPARATIVE EVALUATIONS
DIAGNOSTIC USES
TECHNETIUM 99
THYROID
RADIOISOTOPE SCANNING
FEMALES
ISOMERIC NUCLEI
MALES
PATIENTS
PERTECHNETATES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BODY
COUNTING TECHNIQUES
ELECTRON CAPTURE RADIOISOTOPES
ENDOCRINE GLANDS
GLANDS
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
IODINE ISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
NUCLEI
ODD-EVEN NUCLEI
ORGANS
OXYGEN COMPOUNDS
RADIOISOTOPES
TECHNETIUM COMPOUNDS
TECHNETIUM ISOTOPES
TRANSITION ELEMENT COMPOUNDS
USES
YEARS LIVING RADIOISOTOPES
550601* - Medicine- Unsealed Radionuclides in Diagnostics