| Full text | |
| Author(s): |
dos Anjos, Dalton A.
;
Habr-Gama, Angelita
;
Vailati, Bruna B.
;
Rossi, Cecilia B.
;
Coturel, Adelina E.
;
Perez, Rodrigo O.
;
Sao Juliao, Guilherme P.
;
de Sousa, Joao B.
;
Buchpiguel, Carlos A.
Total Authors: 9
|
| Document type: | Journal article |
| Source: | ANNALS OF NUCLEAR MEDICINE; v. 30, n. 8, p. 513-517, OCT 2016. |
| Web of Science Citations: | 3 |
| Abstract | |
PET/CT has been considered limited for the evaluation of mucinous colorectal tumors due to low F-18-FDG uptake. The aim of our study was to compare PET/CT variables in mucinous (MC) and nonmucinous (NMC) rectal adenocarcinomas. Consecutive patients with cT2-4N0-2M0 rectal cancer included in a prospective clinical trial were reviewed. PET/CT was performed for primary baseline staging. Visual and quantitative analysis included SUVmax and SUVmean, metabolic tumor volume (MTV) and total lesion glycolysis (TLG). PET/CT parameters were compared according to histological subtypes. Overall, 73 patients were included (18 mucinous and 55 nonmucinous). SUVmax values were similar between MC and NMC (19.7 vs. 16.6; p = 0.5). MTV and TLG values were greater in the MC group (103.9 vs. 54.1; p = 0.007 and 892.5 vs. 358.8; p = 0.020) due to larger tumor volumes of MC. Metabolic parameters at baseline PET/CT for patients with rectal cancer are similar in mucinous and nonmucinous histological subtypes. (AU) | |