PROBLEM TO BE SOLVED: To provide equipment for image acquisition of a body area of a patient, in which the local anatomy of soft tissue changes during each acquisition due to different instruments used. The present invention provides an applicator device (10; 10'; 10'') for interventional radiotherapy treatment (brachytherapy), perineal intervention and/or diagnostic procedure on a patient, comprising: Outline comprising a substantially flat plate-like and generally T-shaped body (1;1';1''), the body (1;1';1'') having a curved, preferably concave path An applicator device (10; 10'; 10''), comprising two perimeters (19) with a respective perimeter (19) intended to abut a patient's leg. [Selection diagram]
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