Tandem And Ring Planning

They are used in some types of brachytherapy to deliver radiation directly to the cancer cells within the uterus cervix or vagina.

Tandem and ring planning. You can read more about internal. Smit sleeve ring and tandem. Brachytherapy high dose. Tandem and ring and tandem and ovoid are applicators.

A tandem is a small metal tube. Goal of the procedure. When you wake up you may feel some pressure or discomfort. The tandem and ring applicator is the second most widely used in hdr brachytherapy after the fletcher type applicator which consists of a tandem and 2 ovoids.

This helps limit the dose of radiation to the rectum. Of subsequent highlight the dmbt tandem and ring was found to improve the plan quality by decreasing d 2cm3 by up to average 20 1 5 6 for the rectum 32 4 2 8 for the bladder and 19 7 5 4 for sigmoid compared with standard tandem and ring plans while having the same d 90 minimum dose received by 90 of the volume coverage to the ctv hr 11. The applicator will then be secured into place so it will not move. A spatula like instrument called a rectal retractor is also placed in the vagina under the applicators.

Gynaecological gyn gec estro recommendations i iv have been used as a framework for 3d imaging based 3d treatment planning approach to brachytherapy of cervical cancer 3 6 1. 5 reasons for its use include increased patient comfort applicability in patients where the anatomy does not allow for the wider to applicator 10 and the fixed geometry of the ring relative to the tandem which results in more repeatable dose distributions for a given patient. The applicator will be passed through your cervix and into your uterus. It is placed inside your uterus to provide treatment to that area if you have not had a hysterectomy.

Rate hdr radiation. Once inserted the tandem and ring were rigidly connected to one another using a thumb screw and the external portions the stems were rigidly attached to a fixation device to prevent further movement. The ring and tandem can only be connected in a single configuration and cannot subsequently rotate or slide relative to one another. Esmo clinical practice guidelines for diagnosis treatment and follow up annals of oncology 28 supplement 4.

It will be much like menstrual cramping. The applicators used for the implant treatment include a tandem thin tube and a ring applicator thin tube that forms a circle on one end or a ring applicator with needles. Brachytherapy or internal radiation therapy is a way of giving a higher dose of radiation to the tumor area while sparing or reducing radiation exposure to other organs such as the bowel or bladder. C marth et al.