Open AccessDosimetric impact of edema on inguinal lymph node boost in locally advanced vulvar cancer
Author(s) -
Mohamed Sandy,
Fokdal Lars,
Assenholt Marianne S.,
Kallehauge Jesper,
Lindegaard Jacob C.,
Tanderup Kari
Publication year - 2021
Publication title -
journal of applied clinical medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.83
H-Index - 48
ISSN - 1526-9914
DOI - 10.1002/acm2.13372
Subject(s) - medicine , edema , lymphedema , groin , vulvar cancer , radiation therapy , lymph , inguinal lymph nodes , radiology , lymph node , cancer , nuclear medicine , surgery , pathology , breast cancer
We aimed to evaluate the extent of groin edema and its dosimetric effect in boosted inguinal lymph nodes (LN) for vulvar cancer patients. The level of edema was determined in 10 patients treated with radical radiotherapy. A dosimetric evaluation of six LNs in the patient with the maximum level of edema was performed. The accumulated dose across CBCT fractions was acceptable for all six LNs (>94% of prescribed dose) even with the development of up to 13 mm of edema. The major contributor to fractional dose degradation was geographical displacement of the nodes. We suggest evaluation of edema on daily CBCT.