PT - JOURNAL ARTICLE AU - Hiroto Kizu AU - Teruhiko Takayama AU - Hiroyuki Tsushima AU - Atsushi Noguchi AU - Kenichi Nakajima AU - Masahisa Onoguchi AU - Seigo Kinuya TI - Localization of Metastases from Malignant Pheochromocytoma in Patients Undergoing <sup>131</sup>I-MIBG Therapy with Manually Fused <sup>123</sup>I-MIBG SPECT and CT Images AID - 10.2967/jnmt.108.051656 DP - 2008 Dec 01 TA - Journal of Nuclear Medicine Technology PG - 186--188 VI - 36 IP - 4 4099 - http://tech.snmjournals.org/content/36/4/186.short 4100 - http://tech.snmjournals.org/content/36/4/186.full SO - J. Nucl. Med. Technol.2008 Dec 01; 36 AB - 131I-metaiodobenzylguanidine (MIBG) has been used as a therapeutic agent for pheochromocytoma. Tumor localization and precise staging are essential for therapy with high-dose 131I-MIBG. The sites and extent of 123I-MIBG uptake are usually estimated to predict the effectiveness of therapy before administration. However, conventional scintigraphic images provide insufficient anatomic information. Therefore, we tried to manually superimpose 123I-MIBG SPECT and CT images using free software.