Radioactive particle implantation dose in-vitro measuring device and method

Abstract

The invention relates to a radioactive particle implantation dose in-vitro measuring device and a method. The device comprises a fixing ring, a dose measuring ring coaxial with the fixing ring is arranged at one end of the fixing ring, the fixing ring and the dose measuring ring are connected with each other through a distance adjusting mechanism, the distance between the fixing ring and the dose measuring ring is adjusted by the distance adjusting mechanism, a plurality of fixing rods are arranged on the fixing ring in the circumferential direction, the length direction of the fixing rods is the radius direction of the fixing ring, a plurality of dosimeters are arranged on the dose measuring ring in the circumferential direction, the length direction of the dosimeters is the radius direction of the dose measuring ring, and an expansion and contraction adjusting mechanism used for adjusting the expansion and contraction amount of all the dosimeters is arranged on the dose measuring ring. According to the radioactive particle implantation dose in-vitro measuring device and the method, the dose of a measured object is directly measured, so that the dose measurement result is objective and accurate, and multi-layer and 360-degree dose measurement can be carried out on the measured object.

Description

technical field [0001] The invention relates to a radioactive particle implantation dose measurement technology, in particular to an in vitro measurement device and method for a radioactive particle implantation dose. Background technique [0002] Radioactive seed implantation is a surgery in which a miniature radioactive source is implanted inside the tumor. After the radioactive source is implanted in the tumor, it will continuously release radiation to kill the tumor. At present, postoperative dose is often used in clinical work to evaluate whether the dose distribution after radioactive source implantation is reasonable. The specific method is to scan the patient with CT / MRI or ultrasound after surgery, input the above image data into the computer treatment planning system, outline the target area, identify the particle position and number, and then calculate the dose distribution. However, there are many problems in postoperative dose calculation that are difficult to ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an in vitro measuring device and method for radioactive particle implantation dose, which is used to verify the accuracy of dose calculation, and to solve the problem that the results of current radioactive particle implantation dose calculation are subject to personal subjective influence, large errors, and incomparability The problem of changing dose calculation into dose measurement, and obtaining more accurate dose distribution and dose parameters

Images