First clinical experience with real-time portal imaging-based breath-hold monitoring in tangential breast radiotherapy.
Phys Imaging Radiat Oncol
; 24: 1-6, 2022 Oct.
Article
em En
| MEDLINE
| ID: mdl-36092771
ABSTRACT
Background and purpose:
Real-time treatment monitoring with the electronic portal imaging device (EPID) can conceptually provide a more accurate assessment of the quality of deep inspiration breath-hold (DIBH) and patient movement during tangential breast radiotherapy (RT). A system was developed to measure two geometrical parameters, the lung depth (LD) and the irradiated width (named here skin distance, SD), along three user-selected lines in MV EPID images of breast tangents. The purpose of this study was to test the system during tangential breast RT with DIBH. Materials andmethods:
Measurements of LDs and SDs were carried out in real time. DIBH was guided with a commercial system using a marker block. Results from 17 patients were assessed. Mean midline LDs,Results:
For 56% (162/288) of the tangents tested,Conclusions:
Real-time treatment monitoring of the internal anatomy during DIBH delivery of tangential breast RT is feasible and useful. The new system requires no additional radiation for the patient.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Tipo de estudo:
Guideline
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article