Information processing apparatus that calculates index indicating probability of event occurring to patient in future
AssigneeFujifilm Ri Pharma Co., Ltd.
InventorsKenichi Nakajima, Yumiko Kirihara
Life of this patent
Estimating the term…
Abstract
An object is to accurately calculate an index indicating a probability of an event occurring to a patient in the future. A mortality risk calculation unit acquires a heart/mediastinum ratio (H/M ratio), obtained by administering a heart function diagnostic medicine to a first subject, from subject data stored in a subject data storage unit, and calculates an index indicating a probability of a predetermined event occurring to the first subject by substituting the H/M ratio acquired from the subject data storage unit into a function defined in accordance with a history of occurrences of the predetermined event to a plurality of second subjects.
Claims18
A non-transitory computer-readable storage medium storing a program causing a computer to execute processing of:
- acquiring a heart/mediastinum ratio (H/M ratio), obtained by administering a heart function diagnostic medicine to a first subject with heart failure, from subject data stored in a memory;
- calculating, a mortality risk after a predetermined period as an index indicating a probability of a predetermined event occurring to the first subject in the future by substituting the H/M ratio acquired from the memory into a function obtained by performing a multivariable logistic regression using a history of occurrences of the predetermined event to a plurality of second subjects, the predetermined event being an event which will occur in association with heart failure for the first subject;
- and
- displaying the mortality risk on a display,
- wherein the subject data further includes an age, a gender, an index indicating a severity of heart failure, and an index indicating a left ventricular function of a subject, in addition to the H/M ratio, and
- wherein only five parameters, including the H/M ratio, the age, the gender, the index indicating the severity of heart failure, and the index indicating the left ventricular function of the first subject, are all substituted into the function.
An information processing apparatus comprising:
- a processor;
- and
- a memory storing instructions that, when executed by the processor, cause the processor to:
- acquire a heart/mediastinum ratio (H/M ratio), obtained by administering a heart function diagnostic medicine to a first subject with heart failure, from subject data stored in the memory;
- and
- calculate, a mortality risk after a predetermined period as an index indicating a probability of a predetermined event occurring to the first subject in the future by substituting the H/M ratio acquired from the memory into a function obtained by performing a multivariable logistic regression using a history of occurrences of the predetermined event to a plurality of second subjects, the predetermined event being an event which will occur in association with heart failure of the first subject;
- and a display for displaying the mortality risk, wherein the subject data further includes an age, a gender, an index indicating a severity of heart failure, and an index indicating a left ventricular function of a subject, in addition to the H/M ratio, and
- wherein only five parameters, including the H/M ratio, the age, the gender, the index indicating the severity of heart failure, and the index indicating the left ventricular function of the first subject, are all substituted into the function.
An information processing system comprising:
- a memory that stores subject data including a heart/mediastinum ratio (H/M ratio), obtained by administering a heart function diagnostic medicine to a first subject with heart failure;
- and
- a processor that acquires the H/M ratio in the subject data from the memory, and calculate a mortality risk after a predetermined period as an index indicating a probability of a predetermined event occurring to the first subject in the future by substituting the acquired H/M ratio into a function obtained by performing a multivariable logistic regression using a history of occurrences of the predetermined event to a plurality of second subjects, the predetermined event being an event which will occur in association with heart failure for the first subject;
- and
- a display for displaying the mortality risk,
- wherein the subject data further includes an age, a gender, an index indicating a severity of heart failure, and an index indicating a left ventricular function of a subject, in addition to the H/M ratio, and
- wherein only five parameters, including the H/M ratio, the age, the gender, the index indicating the severity of heart failure, and the index indicating the left ventricular function of the first subject, are all substituted into the function.
Dependencies are inferred from the claim text.