BIOMAT Database Logo BIOMAT Database Logo

Dual-source computed tomography for assessing cardiac function: a phantom study. 2007

Andreas H Mahnken, and Herbert Bruder, and Christoph Suess, and Georg Mühlenbruch, and Philipp Bruners, and Christian Hohl, and Rolf W Guenther, and Joachim E Wildberger
Department of Diagnostic Radiology, University Hospital, RWTH-Aachen University, Aachen, Germany. mahnken@rad.rwth-aachen.de

OBJECTIVE To investigate the influence of heart rate and temporal resolution on the assessment of global ventricular function with dual-source computed tomography (DSCT). METHODS A dynamic cardiac phantom was repeatedly scanned with a DSCT scanner applying a standardized scan protocol at different heart rates, ranging from 40 to 140 bpm. Images were reconstructed with monosegmental and bisegmental algorithms using data from a single source and from both sources. Ventricular volumes and ejection fraction (EF) were computed by semiautomated analysis. Results were compared with the phantom's real volumes. Interscan, intraobserver, and interobserver variability were calculated. RESULTS For single-source data reconstruction temporal resolution was fixed to 165 milliseconds, whereas dual-source image reconstructions resulted in a temporal resolution of 83 milliseconds (monosegmental) and 67.7+/-14.2 milliseconds (bisegmental), respectively. In general, deviation from the phantom's real volumes was less with dual-source data reconstruction when compared with single-source data reconstruction. Comparing dual-source data reconstruction with single-source data reconstruction, the percent deviation from the phantom's real volumes for EF was 0.7% (monosegmental), 0.7% (bisegmental), and 4.3% (single source), respectively. There was no correlation between heart rate and EF for dual-source data reconstruction (r=-0.168; r=-0.157), whereas a relevant correlation was observed for single-source data reconstruction (r=-0.844). Interscan, intraobserver, and interobserver variability for EF were 1.4%, 0.9%, and 0.3%, respectively. CONCLUSIONS DSCT allows reliable quantification of global ventricular function independent of the heart rate. Multisegmental image reconstruction is not needed for DSCT assessment of global ventricular function.

UI MeSH Term Description Entries
D007091 Image Processing, Computer-Assisted A technique of inputting two-dimensional or three-dimensional images into a computer and then enhancing or analyzing the imagery into a form that is more useful to the human observer. Biomedical Image Processing,Computer-Assisted Image Processing,Digital Image Processing,Image Analysis, Computer-Assisted,Image Reconstruction,Medical Image Processing,Analysis, Computer-Assisted Image,Computer-Assisted Image Analysis,Computer Assisted Image Analysis,Computer Assisted Image Processing,Computer-Assisted Image Analyses,Image Analyses, Computer-Assisted,Image Analysis, Computer Assisted,Image Processing, Biomedical,Image Processing, Computer Assisted,Image Processing, Digital,Image Processing, Medical,Image Processings, Medical,Image Reconstructions,Medical Image Processings,Processing, Biomedical Image,Processing, Digital Image,Processing, Medical Image,Processings, Digital Image,Processings, Medical Image,Reconstruction, Image,Reconstructions, Image
D010865 Pilot Projects Small-scale tests of methods and procedures to be used on a larger scale if the pilot study demonstrates that these methods and procedures can work. Pilot Studies,Pilot Study,Pilot Project,Project, Pilot,Projects, Pilot,Studies, Pilot,Study, Pilot
D006321 Heart The hollow, muscular organ that maintains the circulation of the blood. Hearts
D006339 Heart Rate The number of times the HEART VENTRICLES contract per unit of time, usually per minute. Cardiac Rate,Chronotropism, Cardiac,Heart Rate Control,Heartbeat,Pulse Rate,Cardiac Chronotropy,Cardiac Chronotropism,Cardiac Rates,Chronotropy, Cardiac,Control, Heart Rate,Heart Rates,Heartbeats,Pulse Rates,Rate Control, Heart,Rate, Cardiac,Rate, Heart,Rate, Pulse
D006352 Heart Ventricles The lower right and left chambers of the heart. The right ventricle pumps venous BLOOD into the LUNGS and the left ventricle pumps oxygenated blood into the systemic arterial circulation. Cardiac Ventricle,Cardiac Ventricles,Heart Ventricle,Left Ventricle,Right Ventricle,Left Ventricles,Right Ventricles,Ventricle, Cardiac,Ventricle, Heart,Ventricle, Left,Ventricle, Right,Ventricles, Cardiac,Ventricles, Heart,Ventricles, Left,Ventricles, Right
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000465 Algorithms A procedure consisting of a sequence of algebraic formulas and/or logical steps to calculate or determine a given task. Algorithm
D013318 Stroke Volume The amount of BLOOD pumped out of the HEART per beat, not to be confused with cardiac output (volume/time). It is calculated as the difference between the end-diastolic volume and the end-systolic volume. Ventricular Ejection Fraction,Ventricular End-Diastolic Volume,Ventricular End-Systolic Volume,Ejection Fraction, Ventricular,Ejection Fractions, Ventricular,End-Diastolic Volume, Ventricular,End-Diastolic Volumes, Ventricular,End-Systolic Volume, Ventricular,End-Systolic Volumes, Ventricular,Fraction, Ventricular Ejection,Fractions, Ventricular Ejection,Stroke Volumes,Ventricular Ejection Fractions,Ventricular End Diastolic Volume,Ventricular End Systolic Volume,Ventricular End-Diastolic Volumes,Ventricular End-Systolic Volumes,Volume, Stroke,Volume, Ventricular End-Diastolic,Volume, Ventricular End-Systolic,Volumes, Stroke,Volumes, Ventricular End-Diastolic,Volumes, Ventricular End-Systolic
D014057 Tomography, X-Ray Computed Tomography using x-ray transmission and a computer algorithm to reconstruct the image. CAT Scan, X-Ray,CT Scan, X-Ray,Cine-CT,Computerized Tomography, X-Ray,Electron Beam Computed Tomography,Tomodensitometry,Tomography, Transmission Computed,X-Ray Tomography, Computed,CAT Scan, X Ray,CT X Ray,Computed Tomography, X-Ray,Computed X Ray Tomography,Computerized Tomography, X Ray,Electron Beam Tomography,Tomography, X Ray Computed,Tomography, X-Ray Computer Assisted,Tomography, X-Ray Computerized,Tomography, X-Ray Computerized Axial,Tomography, Xray Computed,X Ray Computerized Tomography,X Ray Tomography, Computed,X-Ray Computer Assisted Tomography,X-Ray Computerized Axial Tomography,Beam Tomography, Electron,CAT Scans, X-Ray,CT Scan, X Ray,CT Scans, X-Ray,CT X Rays,Cine CT,Computed Tomography, Transmission,Computed Tomography, X Ray,Computed Tomography, Xray,Computed X-Ray Tomography,Scan, X-Ray CAT,Scan, X-Ray CT,Scans, X-Ray CAT,Scans, X-Ray CT,Tomographies, Computed X-Ray,Tomography, Computed X-Ray,Tomography, Electron Beam,Tomography, X Ray Computer Assisted,Tomography, X Ray Computerized,Tomography, X Ray Computerized Axial,Transmission Computed Tomography,X Ray Computer Assisted Tomography,X Ray Computerized Axial Tomography,X Ray, CT,X Rays, CT,X-Ray CAT Scan,X-Ray CAT Scans,X-Ray CT Scan,X-Ray CT Scans,X-Ray Computed Tomography,X-Ray Computerized Tomography,Xray Computed Tomography
D016276 Ventricular Function The hemodynamic and electrophysiological action of the HEART VENTRICLES. Function, Ventricular,Functions, Ventricular,Ventricular Functions

Related Publications

Andreas H Mahnken, and Herbert Bruder, and Christoph Suess, and Georg Mühlenbruch, and Philipp Bruners, and Christian Hohl, and Rolf W Guenther, and Joachim E Wildberger
Cardiac amyloidosis imaged by dual-source computed tomography.
November 2008, Journal of cardiovascular computed tomography,
Andreas H Mahnken, and Herbert Bruder, and Christoph Suess, and Georg Mühlenbruch, and Philipp Bruners, and Christian Hohl, and Rolf W Guenther, and Joachim E Wildberger
New applications for noninvasive cardiac imaging: dual-source computed tomography.
December 2007, European radiology,
Andreas H Mahnken, and Herbert Bruder, and Christoph Suess, and Georg Mühlenbruch, and Philipp Bruners, and Christian Hohl, and Rolf W Guenther, and Joachim E Wildberger
Utility of dual-source computed tomography in cardiac resynchronization therapy-DIRECT study.
August 2018, Heart rhythm,
Andreas H Mahnken, and Herbert Bruder, and Christoph Suess, and Georg Mühlenbruch, and Philipp Bruners, and Christian Hohl, and Rolf W Guenther, and Joachim E Wildberger
Primary cardiac synovial sarcoma and dual-source cardiac computed tomography findings.
April 2017, Acta cardiologica,
Andreas H Mahnken, and Herbert Bruder, and Christoph Suess, and Georg Mühlenbruch, and Philipp Bruners, and Christian Hohl, and Rolf W Guenther, and Joachim E Wildberger
Influence of trigger type, tube voltage and heart rate on calcified plaque imaging in dual source cardiac computed tomography: phantom study.
September 2014, BMC medical imaging,
Andreas H Mahnken, and Herbert Bruder, and Christoph Suess, and Georg Mühlenbruch, and Philipp Bruners, and Christian Hohl, and Rolf W Guenther, and Joachim E Wildberger
Dual-source cardiac computed tomography: image quality and dose considerations.
June 2008, European radiology,
Andreas H Mahnken, and Herbert Bruder, and Christoph Suess, and Georg Mühlenbruch, and Philipp Bruners, and Christian Hohl, and Rolf W Guenther, and Joachim E Wildberger
Dual-source dual-energy computed tomography angiography for active gastrointestinal bleeding: a preliminary study.
February 2013, Clinical radiology,
Andreas H Mahnken, and Herbert Bruder, and Christoph Suess, and Georg Mühlenbruch, and Philipp Bruners, and Christian Hohl, and Rolf W Guenther, and Joachim E Wildberger
Accuracy of dual-source computed tomography in quantitative assessment of low density coronary stenosis--a motion phantom study.
March 2010, European radiology,
Andreas H Mahnken, and Herbert Bruder, and Christoph Suess, and Georg Mühlenbruch, and Philipp Bruners, and Christian Hohl, and Rolf W Guenther, and Joachim E Wildberger
Tetralogy of Fallot Cardiac Function Evaluation and Intelligent Diagnosis Based on Dual-Source Computed Tomography Cardiac Images.
May 2016, Artificial organs,
Andreas H Mahnken, and Herbert Bruder, and Christoph Suess, and Georg Mühlenbruch, and Philipp Bruners, and Christian Hohl, and Rolf W Guenther, and Joachim E Wildberger
Dual-source computed tomography for evaluating coronary stenosis and left ventricular function.
October 2013, Experimental and therapeutic medicine,
Copied contents to your clipboard!