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Single photon emission computed tomography (SPECT) 

Single photon emission computed tomography (SPECT)
Single photon emission computed tomography (SPECT)

Nikant Sabharwal

, Parthiban Arumugam

, and Andrew Kelion

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date: 02 July 2022

Single photon emission computed tomography (SPECT) allows an organ to be imaged in three dimensions with enhanced contrast. Of particular relevance in nuclear cardiology, it also allows the heart to be reorientated relative to its own axes, and slices presented in standard orthogonal planes. Scintigraphic imaging is thereby rendered more accessible to cardiologists already familiar with echocardiography and other imaging modalities. This chapter explores specific issues of instrumentation, acquisition, and processing, discussing camera options and specific quality control issues. SPECT reconstruction is covered with reference to both filtered back-projection and iterative reconstruction. Other key aspects of SPECT covered include image reorientation, colour display, gated SPECT, and attenuation correction.

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