PT - JOURNAL ARTICLE AU - Ikehira, H AU - Kinjo, M AU - Yamamoto, Y AU - Makino, H AU - Furuichi, Y AU - Nakamura, H AU - Aoki, T TI - Hot spots observed on pulmonary perfusion imaging: a case report. DP - 1999 Dec 01 TA - Journal of Nuclear Medicine Technology PG - 301--302 VI - 27 IP - 4 4099 - http://tech.snmjournals.org/content/27/4/301.short 4100 - http://tech.snmjournals.org/content/27/4/301.full SO - J. Nucl. Med. Technol.1999 Dec 01; 27 AB - A case of hot spots observed on perfusion lung images is presented. This artifact is well known, however, it is rarely seen in our experience. Although this artifact can occur if a faulty injection technique is used, the artifact also may be caused by embolization of the MAA in the upper extremity venous blood after injection. This cause of the artifact is beyond the control of the nuclear medicine professional.