PT  - JOURNAL ARTICLE
AU  - TADASHI MATSUMOTO
AU  - RYO TOYA
AU  - YOSHINOBU SHIMOHIGASHI
AU  - TAKAHIRO WATAKABE
AU  - TOMOHIKO MATSUYAMA
AU  - TETSUO SAITO
AU  - YOSHIYUKI FUKUGAWA
AU  - YUDAI KAI
AU  - NATSUO OYA
TI  - Plan Quality Comparisons Between 3D-CRT, IMRT, and VMAT Based on 4D-CT for Gastric MALT Lymphoma
AID  - 10.21873/anticanres.15190
DP  - 2021 Aug 01
TA  - Anticancer Research
PG  - 3941--3947
VI  - 41
IP  - 8
4099  - http://ar.iiarjournals.org/content/41/8/3941.short
4100  - http://ar.iiarjournals.org/content/41/8/3941.full
SO  - Anticancer Res2021 Aug 01; 41
AB  - Background/Aim: We compared three-dimensional conformal RT (3D-CRT), intensity-modulated radiotherapy (IMRT), and volumetric modulated arc therapy (VMAT) for gastric mucosa-associated lymphoid tissue (MALT) lymphoma using four-dimensional computed tomography (4D-CT) images. Patients and Methods: Three treatment plans of 3D-CRT, IMRT, and VMAT with 30 Gy were created based on 4D-CT images of seven patients. We calculated D95, homogeneity index (HI), and conformity index (CI) of planning target volume, and organs at risk doses. Results: There was no significant difference among the three plans in D95. HI of the IMRT plan was significantly better than that of the VMAT (p=0.047) and 3D-CRT (p=0.047) plans. CIs of the IMRT and VMAT plans were significantly better than those of the 3D-CRT plan (p=0.047 and p=0.047, respectively). Dmean of the liver for 3D-CRT was significantly higher than that for the IMRT (p=0.047) and VMAT (p=0.047) plans. Conclusion: The IMRT plan yields the best plan quality for gastric MALT lymphoma.