open access

Vol 18, No 1 (2015)
Original articles
Published online: 2015-01-29
Submitted: 2014-04-29
Accepted: 2014-12-10
Get Citation

Temporal trends in results of 9170 myocardial perfusion imaging studies (2004 to 2013)

Maseeh uz Zaman, Nosheen Fatima, Unaiza Zaman, Areeba Zaman, S. Zahed Rasheed, Dad J. Baloch
DOI: 10.5603/NMR.2015.0005
·
Pubmed: 25633512
·
Nucl. Med. Rev 2015;18(1):19-24.

open access

Vol 18, No 1 (2015)
Original articles
Published online: 2015-01-29
Submitted: 2014-04-29
Accepted: 2014-12-10

Abstract

BACKGROUND: To assess the frequency of normal and abnormal myocardial perfusion imaging (MPI) in a consecutive cohort of patients from Pakistan over a period of 8.5 years.

MATERIAL AND METHODS: We assessed 9170 patients who had undergone stress-rest MPI between January 2004 and June 2013. Patients were assessed for change in demographics, risk factors, and frequency of abnormal and normal MPI.

RESULTS: Overall mean age and male predominance of studied cohort was ≈ 55 years and ≈ 55:45 (M:F), respectively, with no appreciable decline or rise. Marked decline in exercise as mode of stress (from 71% to 35%, p value significant) was noted during the study period. Regarding the risk factors for CAD, only hypertension was noted to have a significant rising trend during the study period. Trend of MPI results over study period was found non-significant from 2004 till 2006 but from 2007 onward (except 2008), a marginal but significant decline in abnormal MPIs (from 45% to 42%; significant p value) and rise in normal MPI (from 55% to 58%; significant p value) was noted.

CONCLUSIONS: We conclude that over the past 8.5 years, a marginal but significant decline in abnormal and a rise in normal MPIs trend have been observed. An exorbitant rise in use of vasodilator as a method of stress was also observed. We envisaged a follow-up study to ascertain lower negative predictive value of vasodilator as a possible reason and till than results of this and other such studies must be read cautiously.

Abstract

BACKGROUND: To assess the frequency of normal and abnormal myocardial perfusion imaging (MPI) in a consecutive cohort of patients from Pakistan over a period of 8.5 years.

MATERIAL AND METHODS: We assessed 9170 patients who had undergone stress-rest MPI between January 2004 and June 2013. Patients were assessed for change in demographics, risk factors, and frequency of abnormal and normal MPI.

RESULTS: Overall mean age and male predominance of studied cohort was ≈ 55 years and ≈ 55:45 (M:F), respectively, with no appreciable decline or rise. Marked decline in exercise as mode of stress (from 71% to 35%, p value significant) was noted during the study period. Regarding the risk factors for CAD, only hypertension was noted to have a significant rising trend during the study period. Trend of MPI results over study period was found non-significant from 2004 till 2006 but from 2007 onward (except 2008), a marginal but significant decline in abnormal MPIs (from 45% to 42%; significant p value) and rise in normal MPI (from 55% to 58%; significant p value) was noted.

CONCLUSIONS: We conclude that over the past 8.5 years, a marginal but significant decline in abnormal and a rise in normal MPIs trend have been observed. An exorbitant rise in use of vasodilator as a method of stress was also observed. We envisaged a follow-up study to ascertain lower negative predictive value of vasodilator as a possible reason and till than results of this and other such studies must be read cautiously.

Get Citation

Keywords

myocardial perfusion imaging, temporal trends, negative predictive value, normal MPI, abnormal MPI

About this article
Title

Temporal trends in results of 9170 myocardial perfusion imaging studies (2004 to 2013)

Journal

Nuclear Medicine Review

Issue

Vol 18, No 1 (2015)

Pages

19-24

Published online

2015-01-29

DOI

10.5603/NMR.2015.0005

Pubmed

25633512

Bibliographic record

Nucl. Med. Rev 2015;18(1):19-24.

Keywords

myocardial perfusion imaging
temporal trends
negative predictive value
normal MPI
abnormal MPI

Authors

Maseeh uz Zaman
Nosheen Fatima
Unaiza Zaman
Areeba Zaman
S. Zahed Rasheed
Dad J. Baloch

Important: This website uses cookies. More >>

The cookies allow us to identify your computer and find out details about your last visit. They remembering whether you've visited the site before, so that you remain logged in - or to help us work out how many new website visitors we get each month. Most internet browsers accept cookies automatically, but you can change the settings of your browser to erase cookies or prevent automatic acceptance if you prefer.

By "Via Medica sp. z o.o." sp.k., Świętokrzyska 73 street, 80–180 Gdańsk, Poland

tel.:+48 58 320 94 94, faks:+48 58 320 94 60, e-mail: viamedica@viamedica.pl