The truncation artifact in a skinny patient following myocardial perfusion SPECT

Document Type : Case Report


Department of Nuclear Medicine, Shohada-e-Tajrish Medical Center, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran


Myocardial perfusion SPECT is one of the most common imaging techniques performed in nuclear medicine departments. To avoid misleading interpretation, it is necessary to address the quality control and technical problems. The truncation artifact occurs when the patient size is large relative to the field of view of the camera, causing false perfusion defects in the LV myocardium, misinterpreted as myocardial perfusion abnormality. It usually happens in obese patients, who may deviate from the detector field. Here, we present a skinny patient showing myocardial truncation artifact, proved to be because of technical issues.


Main Subjects

  1. Wosnitzer B, Gadiraju R, Depuey G. The truncation artifact. J Nucl Cardiol. 2011 Feb;18(1):187-91.
  2. Matsumoto N, Suzuki Y, Yoda S, Hirayama A. The truncation artefact in patients with a high body mass index on myocardial perfusion SPECT. BMJ Case Rep. 2014 Jul 15;2014. pii: bcr2014205407.
  3. Xiao J, Verzijlbergen FJ, Viergever MA, Beekman FJ. Small field-of-view dedicated cardiac SPECT systems: Impact of projection truncation. Eur J Nucl Med Mol Imaging. 2010 Mar;37(3):528-36.
  4. Tsougos I, Alexiou S, Theodorou K, Valotassiou V, Georgoulias P. The prevalence of a false-positive myocardial perfusion stress SPET test in a skinny patient, induced by projection truncation. Hell J Nucl Med. 2015 Jan-Apr;18(1):79-80.
  5. Yapici O, Baris S, Alic T, Basoglu T. Auto-contouring at 90 degrees dual head fitting angle: a potential cause of a myocardial perfusion SPET artifact in slim patients. Hell J Nucl Med. 2009 Sep-Dec;12(3):289-90.