Impact of MRI timing on tumor volume and anatomic displacement for brain metastases undergoing stereotactic radiosurgery.

ABSTRACT:

Background

The objective of this study was to evaluate the impact of the time interval between planning imaging and stereotactic radiosurgery (SRS) delivery on tumor volumes and spatial anatomic displacements of brain metastases (BM).

Methods

Consecutive patients diagnosed with BM treated with SRS over a 3-year period were evaluated. Only patients who underwent an institutionally standardized diagnostic MRI (MRI-1) and a treatment planning MRI (MRI-2) were included. The impact of histology, inter-scan time interval, lesion location, tumor volume, and diameter were evaluated on final lesion diameter, volume, anatomic displacement, and ultimate need for change in management (ie, expanding margins, rescanning).

Results

101 patients (531 lesions) with a median inter-scan

SUBMITTER: Kutuk T 

PROVIDER: S-EPMC8579090 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature