US 12,290,391 B2
Low dose coronary calcium scoring at low and standard tube potentials
Yifang Zhou, Irvine, CA (US); and Di Zhang, Los Angeles, CA (US)
Assigned to CEDARS-SINAI MEDICAL CENTER, Los Angeles, CA (US)
Filed by Cedars-Sinai Medical Center, Los Angeles, CA (US)
Filed on Nov. 4, 2022, as Appl. No. 18/052,725.
Application 18/052,725 is a continuation in part of application No. PCT/US2021/030448, filed on May 3, 2021.
Claims priority of provisional application 63/131,580, filed on Dec. 29, 2020.
Claims priority of provisional application 63/019,541, filed on May 4, 2020.
Prior Publication US 2023/0097215 A1, Mar. 30, 2023
Int. Cl. A61B 6/50 (2024.01); A61B 6/00 (2006.01); A61B 6/03 (2006.01)
CPC A61B 6/503 (2013.01) [A61B 6/032 (2013.01); A61B 6/504 (2013.01); A61B 6/56 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for measuring cardiac health of a subject, the method comprising: determining a target peak kilovoltage for driving a radiation source of a medical scanner, wherein the target peak kilovoltage is less than 120 kV; calculating a reference dose based on a size of the subject relative to at least a larger reference subject and a smaller reference subject, the reference dose being associated with a peak kilovoltage of 120 kV; determining an appropriate dose by applying a reducing factor to the reference dose, wherein delivering the appropriate dose by driving the radiation source with the target peak kilovoltage achieves a contrast-to-noise ratio equal to a contrast-to-noise ratio achieved when delivering the reference dose by driving the radiation source with the peak kilovoltage of 120 kV; and determining dose parameters based on the appropriate dose.