Dedicated cone-beam breast CT: Data acquisition strategies based on projection angle-dependent normalized glandular dose coefficients.

ABSTRACT:

Background

Dedicated cone-beam breast computed tomography (CBBCT) using short-scan acquisition is being actively investigated to potentially reduce the radiation dose to the breast. This would require determining the optimal x-ray source trajectory for such short-scan acquisition.

Purpose

To quantify the projection angle-dependent normalized glandular dose coefficient ( DgNCT$Dg{N^{CT}}$ ) in CBBCT, referred to as angular DgNCT$Dg{N^{CT}}$ , so that the x-ray ray source trajectory that minimizes the radiation dose to the breast for short-scan acquisition can be determined.

Materials and methods

A cohort of 75 CBBCT clinical datasets was segmented and used to generate three breast models - (I) patient-specific breast with heterogeneous fibroglandular tissue distributio

SUBMITTER: Tseng HW 

PROVIDER: S-EPMC10207937 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature