alexa
Reach Us +44-1235-425476
Image Quality and Radiation Dose Comparison between Filtered Back Projection and Adaptive Statistical Iterative Reconstruction in Non-contrast Head CT Studies | Abstract
ISSN:2167-7964

OMICS Journal of Radiology
Open Access

OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations
700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Research Article

Image Quality and Radiation Dose Comparison between Filtered Back Projection and Adaptive Statistical Iterative Reconstruction in Non-contrast Head CT Studies

Seth Alper*, Prasoon Mohan, Ian Chaves, Richard Kane and Joseph Calandra
St. Francis Hospital, Evanston, Illinois, USA
Corresponding Author : Seth Alper
St. Francis Hospital, Evanston, Illinois, USA
E-mail: [email protected]
Received June 26, 2013; Accepted October 01, 2013; Published October 07, 2013
Citation: Alper S, Mohan P, Chaves I, Kane R, Calandra J (2013) Image Quality and Radiation Dose Comparison between Filtered Back Projection and Adaptive Statistical Iterative Reconstruction in Non-contrast Head CT Studies. OMICS J Radiology 2:147. doi: 10.4172/2167-7964.1000147
Copyright: © 2013 Alper S, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Purpose: The goal of the study was to compare the total radiation dose and subjective image quality between conventional Filtered Back Projection (FBP) and Adaptive Statistical Iterative Reconstruction (ASIR) in non-contrast head CT.

Method: Forty seven patients underwent non contrast head CT with image reconstruction using 100% FBP. The same set of patients underwent subsequent non contrast head CT within 6 months using combination of ASIR and FBP reconstruction. Institutional Review Board approval was obtained. Objective assessment of total radiation dose was obtained by measuring the dose length product (DLP) and effective radiation dose. Subjective image quality was assessed by 2 attending radiologists who were blinded to the scanning technique. All images were graded for sharpness, image noise and overall image quality on a 5 point Likert scale. Both subjective and objective measurements from the two sets of images were compared. Paired Student’s t-Test was used for statistical analysis.

Results: There was a significant reduction in DLP with the application ASIR from 1781.7 (310) to 1098.9 (SD 281.4) mGy-cm (p<0.01), resulting in mean total dose reduction of 38.4%. The total effective dose also showed similar reduction from 3.9 (SD 0.68) to 2.4 (SD 0.62) mSv (P<0.01). Subjective score for image noise was 4.44 (SD 0.43) and 4.40 (SD 0.48), before and after application of ASIR, respectively (p=0.59). Overall image quality scores were 4.87 (SD 0.33) and 4.85 (0.36) before and after application of ASIR, respectively (p=0.12). Subjective scores for image sharpness decreased after application of ASIR from 4.94 (SD 0.24) to 4.77 (SD 0.47) (p=0.04)

Conclusion: Compared to conventional FBP reconstruction, combination of ASIR with FBP reconstruction results in significant reduction in total radiation dose without affecting the overall image quality in non-contrast head CT.

Keywords

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2018-19
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri and Aquaculture Journals

Dr. Krish

[email protected]

+1-702-714-7001Extn: 9040

Biochemistry Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Business & Management Journals

Ronald

[email protected]

1-702-714-7001Extn: 9042

Chemistry Journals

Gabriel Shaw

[email protected]

1-702-714-7001Extn: 9040

Clinical Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Engineering Journals

James Franklin

[email protected]

1-702-714-7001Extn: 9042

Food & Nutrition Journals

Katie Wilson

[email protected]

1-702-714-7001Extn: 9042

General Science

Andrea Jason

[email protected]

1-702-714-7001Extn: 9043

Genetics & Molecular Biology Journals

Anna Melissa

[email protected]

1-702-714-7001Extn: 9006

Immunology & Microbiology Journals

David Gorantl

[email protected]

1-702-714-7001Extn: 9014

Materials Science Journals

Rachle Green

[email protected]

1-702-714-7001Extn: 9039

Nursing & Health Care Journals

Stephanie Skinner

[email protected]

1-702-714-7001Extn: 9039

Medical Journals

Nimmi Anna

[email protected]

1-702-714-7001Extn: 9038

Neuroscience & Psychology Journals

Nathan T

[email protected]

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

Ann Jose

[email protected]

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

[email protected]

1-702-714-7001Extn: 9042

 
© 2008- 2018 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
Leave Your Message 24x7