RT Journal Article SR Electronic T1 Defects on SPECT “Perfusion” Images Can Occur Due to Abnormal Segmental Contraction JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 638 OP 643 VO 35 IS 4 A1 Eisner, Robert L. A1 Schmarkey, L. Susan A1 Martin, Sharon E. A1 Carey, Daniel A1 Worthy, Marquis A. A1 Chu, Tsann H. A1 Horowitz, Steven F. A1 Patterson, Randolph E. YR 1994 UL http://jnm.snmjournals.org/content/35/4/638.abstract AB