APPLICATOR POSITIONING METHOD BASED ON MAGNETIC RESONANCE IMAGING, AND APPLICATOR

摘要

An applicator positioning method based on magnetic resonance imaging (MRI), and applicator. The method comprises: inserting a positioning tube (30) into an outer applicator tube (20) (101); inserting the outer applicator tube (20) inserted with the positioning tube (30) into a target portion for source application, and performing three-dimensional magnetic resonance imaging (102); and determining, according to an imaging agent (31) and positioning devices (321, 322) in the positioning tube (30), an application position (103). The method of the present invention enables the position of an outer applicator tube (20) to be accurately located in an MRI image, and clearly displays morphology and pathological changes of tissues and organs in a periphery of the outer applicator tube (20), thus improving the precision of positioning.