Helical tomotherapy provides efficacy similar to that of intensity-modulated radiation therapy with dosimetric benefits for endometrial carcinoma.

Abstract:

BACKGROUND:The purpose of this study was to compare the efficacy of intensity-modulated radiotherapy (IMRT) and helical tomotherapy for endometrial cancer. METHODS:Between November 1, 2006 and November 31, 2010, 31 patients with histologically confirmed endometrial cancer were enrolled. All enrolled patients received total abdominal hysterectomy and bilateral salpingo-oophorectomy with adjuvant whole pelvic IMRT or helical tomotherapy. RESULTS:The actuarial 3-year overall survival, disease-free survival, locoregional control, and distant metastasis-free rates for the IMRT and helical tomotherapy groups were 87.5% versus 100%, 91.7% versus 51.7%, 91.7% versus 83.3%, and 91.7% versus 51.7%, respectively. The conformal index and uniformity index for IMRT versus helical tomotherapy was 1.25 versus 1.17 (P = 0.04) and 1.08 versus 1.05 (P < 0.01), respectively. Two of 31 patients with cervical stump failure were noted, one in the IMRT group and the other in the helical tomotherapy group. No acute or late grade 3 or 4 toxicities were noted, including proctitis, or genitourinary or gastrointestinal disturbances. CONCLUSION:Helical tomotherapy is as effective as IMRT and has better uniformity and conformal indices, and critical organ-sparing properties. Prospective clinical trials are needed to evaluate the comparative efficacy of IMRT versus helical tomotherapy.

journal_name

Onco Targets Ther

journal_title

OncoTargets and therapy

authors

Hsieh CH,Shueng PW,Hsiao SM,Wei MC,Wu WY,Sun HD,Tien HJ,Wang LY,Hsieh YP

doi

10.2147/OTT.S35958

subject

Has Abstract

pub_date

2012-01-01 00:00:00

pages

245-53

issn

1178-6930

pii

ott-5-245

journal_volume

5

pub_type

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