US 12,167,927 B2
Real-time monitored computed tomography (CT) reconstruction for reducing radiation dose
Konstantin Bulatovich Bulatov, Moscow (RU); Anastasia Sergeevna Ingacheva, Kazan (RU); Marat Irikovich Gilmanov, Belebey (RU); Marina Valerievna Chukalina, Moscow (RU); Vladimir Viktorovich Arlazarov, Moscow (RU); and Dmitry Petrovich Nikolaev, Moscow (RU)
Assigned to Smart Engines Service, LLC, Moscow (RU)
Filed by Smart Engines Service, LLC, Moscow (RU)
Filed on Aug. 9, 2022, as Appl. No. 17/883,837.
Application 17/883,837 is a continuation of application No. PCT/RU2022/000018, filed on Jan. 21, 2022.
Prior Publication US 2023/0233171 A1, Jul. 27, 2023
Int. Cl. A61B 6/03 (2006.01); A61B 6/00 (2006.01); A61B 6/02 (2006.01); G06T 7/00 (2017.01); G06T 11/00 (2006.01)
CPC A61B 6/542 (2013.01) [A61B 6/027 (2013.01); A61B 6/032 (2013.01); A61B 6/5217 (2013.01); G06T 7/0012 (2013.01); G06T 11/006 (2013.01); G06T 2207/10081 (2013.01); G06T 2207/20084 (2013.01); G06T 2207/30061 (2013.01); G06T 2211/441 (2023.08)] 17 Claims
OG exemplary drawing
 
1. A method comprising using at least one hardware processor to, during helical computed tomography (CT) scanning of a target object, after acquiring a set of projections from a sector in a full mode which subjects the target object to a first radiation dose:
identify a slice of the target object that is influenced by the sector;
reconstruct a CT image of the identified slice using projections that have been previously acquired for the slice;
determine whether or not a stopping rule is satisfied based on the reconstructed CT image; and,
when determining that the stopping rule is satisfied,
switch from the full mode to a reduced mode which subjects the target object to a second radiation dose, wherein the second radiation dose is less than the first radiation dose, and
acquire a set of projections from at least one subsequent sector in the reduced mode.