myocardial perfusion spect imaging with tc99m-sestamibi is the most accurate non-invasive means of detecting coronary artery disease and assessing the severity of perfusion abnormalities in the patients with coronary stenosis. though simple and straight forward the results produced by the technique is very much affected by the details being used. one of the main problems with the test, which ha...

UNLABELLED The purpose of this study was to evaluate the efficacy of lymphoscintigraphy and the surgical gamma probe (SGP) with peritumoral injection of 99mTc MIBI in sentinel lymph node (SLN) detection in breast cancer regardless of whether metastatic or not. METHOD Thirty patients with T1/ T2 breast cancer had peritumoral injections of 99mTc MIBI (74 MBq/0.2 ml at 4 different locations) at ...

Introduction: Various radiopharmaceuticals, including 67Ga, 201Tl, and 99mTc-sestamibi have been used to differentiate benign from malignant thyroid nodules. 99mTc-Tetrofosmin, a lipophilic cationic radiotracer, and 99mTc-sestamibi have also been reported to accumulate in thyroid tumors. In this study, we evaluated the role of 99mTc-Tetrofosmin in the differentiation of malignant from ben...

Background: People who have been administrated radiopharmaceuticals could be a source of radiation to their relatives, medical nurses, and people who are in contact with them. The aim of this work was to estimate radiation dose received by nuclear medicine nurses. Materials and Methods: In this study, the dose rates at various distances of 5 – 100 cm from 70 patients, who were administered diag...

introduction: renal length measurement is an important diagnostic clue in several urinary tract abnormalities. although ultra sonography is the most frequent used modality for renal size estimation, renal diameter assessment by 99mtc-dmsa scintigraphy is of great value. by now, pointing to the renal size in the 99mtc-dmsa scintigraphy report has not been recommended by guidelines. if the validi...

introduction: various radiopharmaceuticals, including 67ga, 201tl, and 99mtc-sestamibi have been used to differentiate benign from malignant thyroid nodules. 99mtc-tetrofosmin, a lipophilic cationic radiotracer, and 99mtc-sestamibi have also been reported to accumulate in thyroid tumors. in this study, we evaluated the role of 99mtc-tetrofosmin in the differentiation of malignant from benign th...

UNLABELLED This study investigates the feasibility of routine clinical 201Tl gated perfusion SPECT (gated Tl), and compares quantitative left ventricular ejection fraction (LVEF) and visually-assessed regional wall motion and thickening to analogous values obtained from 99mTc-sestamibi gated perfusion SPECT (gated MIBI). METHODS We studied 121 patients with a rest gated Tl (3-3.5 mCi, 35 sec/...

OBJECTIVE To determine the usefulness of 99mtechnetium (99mTc) immunoglobulin scintigraphy (99mTc IgG) in rheumatoid arthritis (RA) and in other arthritides. METHODS Scintigraphic scores were compared with the Ritchie index and biochemical variables of disease activity. RESULTS In RA, scintigraphic scores were reproducible and seemed to perform better than clinical scores. Moreover, the sco...

A 37-year-old male with a persistent increased parathyroid hormone level, after subtotal thyroidectomy and parathyroidectomy, was referred for scintigraphic localization of a possible ectopic parathyroid adenoma. Tc-99m pertechnetate and Tc-99m MIBI scintigraphy were performed on separate days. There was marked uptake of both tracers in the mediastinum, which at surgery was confirmed to be an e...