TY - JOUR T1 - 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 JF - Journal of Nuclear Medicine Technology JO - J. Nucl. Med. Technol. SP - 186 LP - 188 DO - 10.2967/jnmt.108.051656 VL - 36 IS - 4 AU - Hiroto Kizu AU - Teruhiko Takayama AU - Hiroyuki Tsushima AU - Atsushi Noguchi AU - Kenichi Nakajima AU - Masahisa Onoguchi AU - Seigo Kinuya Y1 - 2008/12/01 UR - http://tech.snmjournals.org/content/36/4/186.abstract N2 - 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. ER -