Contrast agent injection protocol determination method and contrast injection protocol computing device

摘要

PROBLEM TO BE SOLVED: To obtain a proper injection protocol for monophasic injection without depending on empirical fitting processing.;SOLUTION: A contrast medium is test-injected into a subject according to a test injection protocol, and the subject is prescanned (a test: S1-S3). A test time concentration curve is created on the basis of the test (S4 and S5). An injection rate is set at a fixed value equivalent to a test injection rate, according to the test time concentration curve, and a plurality of predicted time concentration curves when the injection rate is determined as various values are created (S7). In each of the predicted time concentration curves, a maximum concentration value capable of securing a required concentration maintenance time is determined (S8). The injection rate is determined on the basis of the ratio of the maximum concentration value to the required concentration value (S9). Additionally, the injection amount of the contrast medium is determined by making the injection rate multiplied by an injection time, and the plurality of injection protocols, which represent the monophasic injection specified by the injection amount and injection rate of the contrast medium, are created (S10).;COPYRIGHT: (C)2007,JPO&INPIT