1. Morozumi T, Nakajima M, Ogawa K, Yuta S. Attenuation correction methods using the information of attenuation distribution for single photon emission CT. Med Imag Tech. 1984;2:20–8.
2. Malko JA, Gullberg GT, Kowalsky WP, Van Heertum RL. A count-based algorithm for attenuation-corrected volume determination using data from an external flood source. J Nucl Med. 1985;26:194–200.
3. Bailey DL, Hutton BF, Walker PJ. Improved SPECT using simultaneous emission and transmission tomography. J Nucl Med. 1987;28:844–51.
4. Greer KL, Harris CC, Jaszczak RJ, Coleman RE, Hedland LW, Floyd CE, et al. Transmission computed tomography data acquisition with a SPECT system. J Nucl Med Tech. 1987;15:53–6.
5. Butler SP, Bailey DL, McLaughlin AF, Khafagi FA, Stephens FO. SPECT evaluation of arterial perfusion in regional chemotherapy. J Nucl Med. 1988;29:593–8.