Abstract | OBJECTIVE:
99mTc-tetrofosmin single photon emission computed tomography (SPECT) is routinely used in the evaluation of coronary artery disease. A variety of different tumors, however, also demonstrate 99mTc-tetrofosmin uptake. We report six patients found with unexpected mediastinal and thoracic tumor uptake during Tc-tetrofosmin myocardial perfusion scintigraphy (MPS). MATERIALS AND METHODS: We investigated 2,155 patients with Tc-tetrofosmin MPS during 2006-2007. One thousand four hundred and eighty-six of these patients had no coronary history and were sent to our department due to newly developed thoracic complaint such as chest pain, dyspnea and others. Six hundred and sixty-nine patients had coronary history. All patients underwent 99mTc-tetrofosmin exercise study. Patients with unexpected extracardiac Tc-tetrofosmin findings during MPS were referred to PET/CT for further diagnostic investigation. Region of interest (ROI; 99mTc-tetrofosmin) and SUVmax (2-[F]fluoro- 2-deoxy-D-glucose, F-FDG) were estimated and the results were compared with histological findings. RESULTS: CONCLUSION: During Tc-tetrofosmin SPECT exercise stress tests performed in patients with suspected coronary artery disease, much more attention must be given to unexpected extracardiac uptakes. With 99mTc-tetrofosmin a large variety of different unknown tumors can be detected during MPS.
|
Authors | Stefan Gratz, Bendix Kempke, Wolf Kaiser, Thomas M Behr, Andreas Pfestroff, Helmut Höffken |
Journal | Nuclear medicine communications
(Nucl Med Commun)
Vol. 29
Issue 11
Pg. 963-9
(Nov 2008)
ISSN: 0143-3636 [Print] England |
PMID | 18836374
(Publication Type: Comparative Study, Journal Article)
|
Chemical References |
- Organophosphorus Compounds
- Organotechnetium Compounds
- Radiopharmaceuticals
- Fluorodeoxyglucose F18
- technetium tc-99m tetrofosmin
|
Topics |
- Aged
- Breast Neoplasms, Male
(complications, diagnostic imaging)
- Carcinoma, Non-Small-Cell Lung
(complications, diagnostic imaging)
- Coronary Artery Disease
(complications, diagnostic imaging)
- Female
- Fluorodeoxyglucose F18
- Heart
(diagnostic imaging)
- Humans
- Lung Neoplasms
(complications, diagnostic imaging)
- Male
- Middle Aged
- Myocardial Perfusion Imaging
(methods)
- Organophosphorus Compounds
- Organotechnetium Compounds
- Positron-Emission Tomography
(methods)
- Radiography
- Radiopharmaceuticals
- Thymoma
(complications, diagnostic imaging)
- Thymus Neoplasms
(complications, diagnostic imaging)
- Tomography, Emission-Computed
- Tomography, Emission-Computed, Single-Photon
|