Tumour auto-contouring on 2d cine MRI for locally advanced lung cancer: A comparative study.

ABSTRACT:

Background and purpose

Radiotherapy guidance based on magnetic resonance imaging (MRI) is currently becoming a clinical reality. Fast 2d cine MRI sequences are expected to increase the precision of radiation delivery by facilitating tumour delineation during treatment. This study compares four auto-contouring algorithms for the task of delineating the primary tumour in six locally advanced (LA) lung cancer patients.

Material and methods

Twenty-two cine MRI sequences were acquired using either a balanced steady-state free precession or a spoiled gradient echo imaging technique. Contours derived by the auto-contouring algorithms were compared against manual reference contours. A selection of eight image data sets was also used to assess the inter-observer delineation uncertain

SUBMITTER: Fast MF 

PROVIDER: S-EPMC5736170 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature