Comparison of 4 Cm Z-axis and 16 Cm Z-axis Multidetector CT Perfusion

Overview

Journal Eur Radiol

Specialty Radiology

Date 2009 Dec 17

PMID 20013273

Citations 10

Authors

Mark Page

Dee Nandurkar

Marcus Peter Crossett

Stephen L Stuckey

Kenneth P Lau

Nicholas Kenning

John M Troupis

Affiliations

Soon will be listed here.

Abstract

Objective: The aim of the study was to compare 4 cm with 16 cm Z-axis coverage in the assessment of brain CT perfusion (CTP) using. 320 slice multidetector CT METHODS: A retrospective non-randomised review of CTP performed on MD320 CT between September 2008 and January 2009 was undertaken. Two experienced readers reviewed the studies along with the 4 cm and 16 cm Z-axis CTP image data set. The outcome parameters assessed were the extent of the original finding, any additional findings and a change of diagnosis.

Results: 14 out of 27 patients were found to have abnormal CTP (mean age 58.1 years, 9 male). The 16 cm Z-axis increased the accuracy of the infarct core in 78% and ischaemic penumbra quantification in 100% of the cases. It also diagnosed additional infarcts in the same vascular territory in 28% of cases and in a different vascular territory in 14%.

Conclusions: The increased field of view with MD320 better defines the true extent of the infarct core and ischaemic penumbra. It also identified other areas of infarction that were not identified on the 4 cm Z-axis.

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