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ExampleCard Basic Cardiac Function

ExamCard
Geerts, Liesbeth Philips Healthcare Philips Global

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ExampleCard Purpose

Purpose of the ExampleCard is to guide the user through a basic cardiac functional exam. Cardiac imaging is often perceived as challenging, because of the cardiac and respiratory motion, and the planning of double oblique anatomical views. However, with some simple guidelines, cardiac imaging is achievable for everyone. In this ExampleCard planning of the Cardiac Views is performed in a series of subsequent cine scans. Helptext is added in which planning of the Cardiac Views is explained and illustrated for the user.

This document follows the proposed workflow of the "How to Cardiac" instruction.

ExampleCard Overview

Scan 1Survey
Scan 2RefScan
Scan 3Cine: RAO
Scan 4Cine: SA
Scan 5Cine: 4CH
Scan 6Cine: multislice SA
Scan 7QFlow Aorta

Patient preparation

  • Position the patient on the SENSE Cardiac coil. Align the top of the sternum with the upper-element marker on the side of the coil.
  • Place the VCG electrodes as shown below.
Coil positioning. Electrode positioning.
Coil positioning.
Electrode positioning.

Starting to scan

  • Start the Survey and the Reference scan.
  • Specify the correct heart rate at the ExamCard property page; this heart rate will be used throughout the exam. If the heart rate changes, you can enter this page at any time during the exam to update the patient├ús heart rate.
  • Position the Shim volume over the heart, such that it covers the heart and the large vessels (The Shim volume is represented by a green box in the images below).
Planning the shim volume. Plan the shim volume (green lines) such that it covers the entire heart and the large vessels.
Planning the shim volume.
Plan the shim volume (green lines) such that it covers the entire heart and the large vessels.

Planning the cardiac views in subsequent cine scans

Follow the steps below to plan the Cardiac Views. Always make sure you plan perpendicular to the previous scan. Make sure PlanAlign is switched on to prevent unwanted in-plane rotations and SENSE artifacts. Make sure all images are acquired in the same phase of the respiratory cycle, so acquire either all images in expiration or all images in inspiration.
Transverse (Tra) Start planning the cardiac views on a transverse (survey) image. Right anterior oblique (RAO) Define the right anterior oblique (RAO) view on the transverse image by selecting a slice parallel to the septum (green line in 'Tra' image). Make sure the slice is perpendicular to the transverse image by selecting image orientation sagittal (this may change to coronal orientation during planning, dependent on the patient's geometry.)
Transverse (Tra)
Right anterior oblique (RAO)
Start planning the cardiac views on a transverse (survey) image.
Define the right anterior oblique (RAO) view on the transverse image by selecting a slice parallel to the septum (green line in 'Tra' image). Make sure the slice is perpendicular to the transverse image by selecting image orientation sagittal (this may change to coronal orientation during planning, dependent on the patient's geometry.)
Short axis (SA) Define the short axis view (SA) on the RAO image. Place the slice orthogonal to the imaginary (long axis) line through the apex and the center of the mitral valve (green line in 'RAO' image). Make sure the slice is perpendicular to the RAO image. Four chamber (4CH) Define the four-chamber view (4CH) on the SA image by placing the slice through the center of the left ventricular cavity and the inferior margin of the right ventricle (green line in 'SA' view).
Short axis (SA)
Four chamber (4CH)
Define the short axis view (SA) on the RAO image. Place the slice orthogonal to the imaginary (long axis) line through the apex and the center of the mitral valve (green line in 'RAO' image). Make sure the slice is perpendicular to the RAO image.
Define the four-chamber view (4CH) on the SA image by placing the slice through the center of the left ventricular cavity and the inferior margin of the right ventricle (green line in 'SA' view).

 

The Cardiac Views as defined above can now be used throughout the exam. Additional protocols can be inserted into the ExampleCard.



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Mar 10, 2005

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ExamCard
Achieva 1.5T, Intera 1.5T
Release 1, Release 10, Release 11, Release 9
Explorer / Nova Dual, Master / Nova, Nova, Nova Dual, Omni / Stellar, Power / Pulsar, Pulsar
Cardiac, Function Cine
 

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