Value of combined XCT/SPECT technology for avoiding false positive planar (123)I-MIBG scintigraphyTools Ozer, S und Dobrozemsky, G und Kienast, O und Beheshti, M und Becherer, A und Niederle, B und Kainberger, F und Dudczak, R und Kurtaran, A (2004) Value of combined XCT/SPECT technology for avoiding false positive planar (123)I-MIBG scintigraphy. Nuklearmedizin. Nuclear Medicine, 43 (5). pp. 164-170. ISSN 0029-5566 ![]() 2004 Özer Nuklearmedizin.pdf ['document_security_info' not defined] Nur registrierte Benutzer ['summary_page:download' not defined] (1MB) KurzfassungAIM
The clinical value of combined XCT/SPECT technology in a single device in patients undergoing (123)I-MIBG scintigraphy was analyzed.
METHODS
31 patients (19 men, 12 women; mean age 55 years, range: 31-79 years) demonstrating focal accumulation in planar (123)I-MIBG scan were further investigated with a double headed gamma camera with an X-ray tomograph mounted on the same gantry (GE Medical Systems, Millennium VG with Hawkeye, Milwaukee, USA) for anatomical definition of the focal (123)I-MIBG uptake. The patients were referred to (123)I-MIBG scintigraphy because of biochemically (81%) and/or clinically (19%) suspected pheochromocytoma.
RESULTS
In 23 out of 31 patients (74%) the fused images demonstrated physiological accumulation (i. e. intestinal, renal) of (123)I-MIBG. In two patients (6%) suspected adrenal MIBG-accumulation was caused by inhomogeneous liver uptake. In two patients (6%) focal abdominal accumulation was correctly localised in the adrenal glands. Furthermore, the differentiation of bone metastasis from a local recurrence for phaeochromocytoma was accurately possible for two patients (6%). Adrenal lesions mimicking liver foci were correctly localised in the remaining two patients (6%).
CONCLUSION
Our study demonstrates the clinical value of XCT/SPECT in a single device in patients demonstrating focal (123)I-MIBG uptake in planar scintigraphy. The combined XCT/SPECT technology provides a higher diagnostic accuracy.
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