# A Prototype Stationary X-Ray Source Digital Breast Tomosynthesis System

> **NIH NIH R01** · SRI INTERNATIONAL · 2020 · $360,077

## Abstract

PROJECT SUMMARY/ABSTRACT
Digital breast tomosynthesis (DBT) has been shown to significantly increase accuracy in the early detection
and diagnosis of breast cancer. The goals of this proposal are to further enhance the efficacy and performance
of this type of imaging by removing mechanical motion of the X-ray tube through the development of a
stationary X-ray source DBT system. The development of a stationary X-ray source DBT system will enable a
3- to over 10-fold decrease in scan time relative to that of existing commercial systems. Shorter scan times
improve image quality by reducing instances of patient motion without introducing image blurring due to tube
movement or vibration – keys to exploiting the improved imaging sensitivity of DBT. In addition, it is anticipated
that the proposed system could expand the availability of DBT by decreasing up-front capital, operating, and
maintenance costs. We expect that lower-cost, higher-performance imaging will accelerate the on-going
displacement of full-field digital mammography by DBT, thereby providing more women with higher quality
imaging sooner.

## Key facts

- **NIH application ID:** 9878795
- **Project number:** 5R01CA214515-04
- **Recipient organization:** SRI INTERNATIONAL
- **Principal Investigator:** PAUL R SCHWOEBEL
- **Activity code:** R01 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 2020
- **Award amount:** $360,077
- **Award type:** 5
- **Project period:** 2017-03-15 → 2022-01-27

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/9878795

## Citation

> US National Institutes of Health, RePORTER application 9878795, A Prototype Stationary X-Ray Source Digital Breast Tomosynthesis System (5R01CA214515-04). Retrieved via AI Analytics 2026-05-23 from https://api.ai-analytics.org/grant/nih/9878795. Licensed CC0.

---

*[NIH grants dataset](/datasets/nih-grants) · CC0 1.0*