A Practice Quality Improvement Project

Reducing Dose of Routine Chest CT Imaging in a Busy Clinical Practice

Edwin A. Takahashi, Marc D. Kohli, Shawn D. Teague

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The purpose of this report is to describe our experience with the implementation of a practice quality improvement (PQI) project in thoracic imaging as part of the American Board of Radiology Maintenance of Certification process. The goal of this PQI project was to reduce the effective radiation dose of routine chest CT imaging in a busy clinical practice by employing the iDose4 (Philips Healthcare) iterative reconstruction technique. The dose reduction strategy was implemented in a stepwise process on a single 64-slice CT scanner with a volume of 1141 chest CT scans during the year. In the first annual quarter, a baseline effective dose was established using the standard filtered back projection (FBP) algorithm protocol and standard parameters such as kVp and mAs. The iDose4 technique was then applied in the second and third annual quarters while keeping all other parameters unchanged. In the fourth quarter, a reduction in kVp was also implemented. Throughout the process, the images were continually evaluated to assure that the image quality was comparable to the standard protocol from multiple other scanners. Utilizing a stepwise approach, the effective radiation dose was reduced by 23.62 and 43.63 % in quarters two and four, respectively, compared to our initial standard protocol with no perceived difference in diagnostic quality. This practice quality improvement project demonstrated a significant reduction in the effective radiation dose of thoracic CT scans in a busy clinical practice.

Original languageEnglish (US)
Pages (from-to)1-5
Number of pages5
JournalJournal of Digital Imaging
DOIs
StateAccepted/In press - Mar 18 2016
Externally publishedYes

Fingerprint

Quality Improvement
Thorax
Dosimetry
Imaging techniques
Computerized tomography
Radiation
Radiology
Certification
Image quality
Maintenance
Delivery of Health Care

Keywords

  • Computed tomography
  • Dose reduction
  • Iterative reconstruction
  • Quality improvement

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology
  • Computer Science Applications

Cite this

A Practice Quality Improvement Project : Reducing Dose of Routine Chest CT Imaging in a Busy Clinical Practice. / Takahashi, Edwin A.; Kohli, Marc D.; Teague, Shawn D.

In: Journal of Digital Imaging, 18.03.2016, p. 1-5.

Research output: Contribution to journalArticle

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