PMID- 8899677
OWN - NLM
STAT- MEDLINE
DCOM- 19970519
LR  - 20191101
IS  - 0958-3947 (Print)
IS  - 1873-4022 (Linking)
VI  - 21
IP  - 3
DP  - 1996 Fall
TI  - Reduction of the rectal dose in gynecological brachytherapy: modification to the 
      Fletcher-Suit applicator.
PG  - 139-43
AB  - The dose to the anterior rectal wall is a known limiting factor for the delivery 
      of radical doses of radiation to the uterine cervix with brachytherapy. We 
      developed a modification to the Fletcher-Suit afterloading applicator, consisting 
      of two small inflatable balloons attached to the posterior end of each colpostat. 
      The balloons are connected to catheters that emerge from the vagina attached to 
      the colpostat's handles. The balloons were affixed to the colpostats with a 
      plastic adaptor and are inserted empty. After an anterior radiograph is taken, 
      the balloons are filled with radiological contrast material and a lateral 
      orthogonal film is made. This lateral film taken with the balloons filled with 
      contrast typically shows a significant posterior displacement of the anterior 
      rectal wall away from the vaginal sources. The International Commission on 
      Radiation Units (ICRU) rectal point is then determined 5 mm beyond the posterior 
      boundary of the opacified balloons. We have performed 90 applications using this 
      device, including brachytherapy applications for cervical cancer, as well as 
      vaginal applications for endometrial carcinoma following TAH-BSO. On average, the 
      ICRU rectal point was displaced 14 mm away from the colpostats, thus reducing the 
      dose rate by 60% and resulting in an average dose sparing of about 1000 cGy to 
      the anterior rectal wall.
FAU - Rosenblatt, E
AU  - Rosenblatt E
AD  - Department of Oncology, Rambam Medical Center, Haifa, Israel.
FAU - Cederbaum, M
AU  - Cederbaum M
FAU - Yereslav, N
AU  - Yereslav N
FAU - Kuten, A
AU  - Kuten A
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Med Dosim
JT  - Medical dosimetry : official journal of the American Association of Medical 
      Dosimetrists
JID - 8908862
RN  - 0 (Contrast Media)
RN  - 3X9MR4N98U (Diatrizoate Meglumine)
SB  - IM
MH  - Brachytherapy/*instrumentation
MH  - Carcinoma/radiotherapy
MH  - Catheterization/instrumentation
MH  - Contrast Media
MH  - Diatrizoate Meglumine
MH  - Endometrial Neoplasms/radiotherapy
MH  - Equipment Design
MH  - Female
MH  - Humans
MH  - Radiography
MH  - *Radiotherapy Dosage
MH  - Rectum/diagnostic imaging/*radiation effects
MH  - Uterine Cervical Neoplasms/*radiotherapy
EDAT- 1996/10/01 00:00
MHDA- 1996/10/01 00:01
CRDT- 1996/10/01 00:00
PHST- 1996/10/01 00:00 [pubmed]
PHST- 1996/10/01 00:01 [medline]
PHST- 1996/10/01 00:00 [entrez]
AID - 0958-3947(96)00079-9 [pii]
AID - 10.1016/0958-3947(96)00079-9 [doi]
PST - ppublish
SO  - Med Dosim. 1996 Fall;21(3):139-43. doi: 10.1016/0958-3947(96)00079-9.