A comparison of the image quality of full-time myocardial perfusion SPECT vs wide beam reconstruction half-time and half-dose SPECT

Abstract

Both "half-time" and "half-dose" WBR provide myocardial perfusion SPECT quality superior to full-time OSEM, with an associated decrease in scan acquisition time and patient radiation exposure, respectively.

ASNC imaging guidelines for SPECT nuclear cardiology procedures: Stress, protocols, and tracers

“…In obese patients undergoing 2-day protocols, radiation dose can be optimized by performing stress imaging on the first day, and only performing rest imaging if these images are abnormal. For laboratories with advanced software (e.g., incorporating noise reduction and resolution recovery) and/or hardware (e.g., cameras with multiple cadmiumzinc-telluride detectors) enabling more efficient count detection, [72][73][74] reduced-dose protocols should be considered, a set of which are included in Table 5.…”

Achieving Very-Low-Dose Radiation Exposure in Cardiac Computed Tomography, Single-Photon Emission Computed Tomography, and Positron Emission Tomography

“…52,53 Low-dose imaging was also demonstrated on a standard SPECT camera using an iterative reconstruction technique with standard acquisition times. 54 In another study, the patient dose was reduced to 4.3 mSv for stress-rest protocols when background activity subtraction was applied. …”

Optimization of iterative reconstruction parameters with attenuation correction, scatter correction and resolution recovery in myocardial perfusion SPECT/CT

“…The latest iterative reconstruction technologies (5,6) are commercially available as Flash 3D (Siemens Medical Solutions, Erlangen, Germany) (7)(8)(9), Astonish (Philips Medical Systems, Milpitas, CA, USA) (10)(11)(12), Evolution for Cardiac (GE Healthcare, Waukesha, WI, USA) (13) and wide beam reconstruction (UltraSPECT, Haifa, Israel) (13,14). Since noise reduction algorithm is incorporated into the latest iterative reconstruction processing as well as AC, SC and RR, half time cardiac SPECT imaging became feasible (11,(13)(14)(15)(16).…”

“…Since noise reduction algorithm is incorporated into the latest iterative reconstruction processing as well as AC, SC and RR, half time cardiac SPECT imaging became feasible (11,(13)(14)(15)(16). Consequently, the image quality for the half-time SPECT imaging is equivalent to that for the conventional full-time SPECT imaging in clinical studies (11,13,16).…”