Single photon emission computed tomography imaging method
First Claim
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1. A SPECT diagnostic method of performing myocardial perfusion imaging on a patient, the method comprising the steps of:
- (A) commencing a myocardial perfusion diagnostic scan of a patient using a SPECT camera, wherein the SPECT camera comprises an Anger-type SPECT camera comprising first, second, and third gantry rotations;
(B) during the myocardial perfusion diagnostic scan of the patient, determining a photon count rate comprising a rate at which the Anger-type SPECT camera receives photons used to construct a myocardial perfusion image, wherein the photon count rate is determined during the first gantry rotation;
(C) using the photon count rate and a predetermined total photon count target, determining a scan duration time for said myocardial perfusion diagnostic scan of the patient during the myocardial perfusion diagnostic scan, wherein the scan duration time is determined during the second gantry rotation; and
(D) terminating the myocardial perfusion diagnostic scan when the scan duration time elapses.
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Abstract
A SPECT diagnostic method of performing myocardial perfusion imaging on a patient, the method including (A) commencing a mycocardial perfusion diagnostic scan; (B) during the scan, determining the photon count rate; (C) using the photon count rate and a predetermined total photon count target, determining a scan duration time; (D) terminating the diagnostic scan when the scan duration time elapses.
3 Citations
12 Claims
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1. A SPECT diagnostic method of performing myocardial perfusion imaging on a patient, the method comprising the steps of:
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(A) commencing a myocardial perfusion diagnostic scan of a patient using a SPECT camera, wherein the SPECT camera comprises an Anger-type SPECT camera comprising first, second, and third gantry rotations; (B) during the myocardial perfusion diagnostic scan of the patient, determining a photon count rate comprising a rate at which the Anger-type SPECT camera receives photons used to construct a myocardial perfusion image, wherein the photon count rate is determined during the first gantry rotation; (C) using the photon count rate and a predetermined total photon count target, determining a scan duration time for said myocardial perfusion diagnostic scan of the patient during the myocardial perfusion diagnostic scan, wherein the scan duration time is determined during the second gantry rotation; and (D) terminating the myocardial perfusion diagnostic scan when the scan duration time elapses. - View Dependent Claims (2, 3)
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4. A SPECT diagnostic method of performing myocardial perfusion imaging on a patient, the method comprising the steps of:
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(A) determining a volume of muscle tissue of a left ventricle portion of a heart of the patient; (B) determining a photon count rate comprising a rate at which a SPECT camera receives photons used to construct a myocardial perfusion image; (C) commencing a myocardial perfusion diagnostic scan of the patient using the SPECT camera; (D) during the myocardial perfusion diagnostic scan of the patient and using the volume, the photon count rate and a predetermined photon count density, determining a scan duration time for said myocardial perfusion diagnostic scan of the patient; and (E) terminating the myocardial perfusion diagnostic scan of the patient when the scan duration time elapses. - View Dependent Claims (5, 6)
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7. A SPECT diagnostic method of performing myocardial perfusion imaging on a patient, the method comprising the steps of:
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commencing a myocardial perfusion diagnostic scan of a patient using a SPECT camera; during the myocardial perfusion diagnostic scan of the patient, determining a photon count rate comprising a rate at which the SPECT camera receives photons used to construct a myocardial perfusion image; during the myocardial perfusion diagnostic scan of the patient and using a volume of muscle tissue of a left ventricle portion of a heart of the patient, the photon count rate, and a predetermined photon count density, determining a scan duration time for the myocardial perfusion diagnostic scan of the patient; and terminating the myocardial perfusion diagnostic scan of the patient when the scan duration time elapses. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification