US 12,251,230 B2
Diagnosis support system and diagnosis support method
Yoshiyuki Sankai, Ibaraki (JP)
Assigned to CYBERDYNE Inc., Ibaraki (JP)
Appl. No. 17/764,103
Filed by CYBERDYNE Inc., Ibaraki (JP)
PCT Filed Sep. 29, 2020, PCT No. PCT/JP2020/036893
§ 371(c)(1), (2) Date Mar. 25, 2022,
PCT Pub. No. WO2021/070678, PCT Pub. Date Apr. 15, 2021.
Claims priority of application No. 2019-184841 (JP), filed on Oct. 7, 2019.
Prior Publication US 2022/0378355 A1, Dec. 1, 2022
Int. Cl. A61B 5/36 (2021.01); A61B 5/00 (2006.01); A61B 5/28 (2021.01); A61B 5/339 (2021.01); A61B 5/352 (2021.01); A61B 5/361 (2021.01)
CPC A61B 5/361 (2021.01) [A61B 5/28 (2021.01); A61B 5/339 (2021.01); A61B 5/352 (2021.01); A61B 5/4842 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A diagnosis support system comprising:
an electrocardiogram measurement unit that measures an electrocardiogram of a subject;
a complex fractionated atrial electrogram judgment unit that judges a complex fractionated atrial electrogram indicating characteristics of an atrial fibrillation at a heartbeat interval that is a peak interval of R waves which are chronologically adjacent to each other, on a basis of electrocardiogram data measured by the electrocardiogram measurement unit, the complex fractionated atrial electrogram having an atrial electric potential more than a threshold value that is generated from a maximum value of atrial waves;
a data storage unit that stores judgment results by the complex fractionated atrial electrogram judgment unit in chronological order as judgment data which is specific to the subject;
a frequency histogram generation unit that generates a frequency histogram according to an occurrence frequency within a specified period of time on a basis of the judgment data which is collected over the specific period of time with respect to the subject and read from the data storage unit; and
an assessment learning unit that performs assessment learning to assess a degree of progress of an atrial fibrillation on a basis of the frequency histogram with respect to the subject by the frequency histogram generation unit,
wherein the complex fractionated atrial electrogram judged by the complex fractionated atrial electrogram judgment unit comprises a measurement for finding an ablation site of the percutaneous catheter myocardial ablation;
wherein atrial fibrillation is ablated according to the found ablation site.