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1.5T Pulmonary arteries - West Branch Regional Imaging Center

ExamCard
Anderson, Lindsay, R.T. West Branch Regional Medical Center

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ExamCard description

This R2.5.1 ExamCard is designed for evaluation of possible pulmonary embolism for patients exhibiting signs and symptoms and who have a contraindication to CT contrast.

 

MRI is a minimally invasive method that can be used for the evaluation of the pulmonary arteries. The example demonstrated below was acquired using the SENSE Body coil and a power injector for contrast. The scans performed were a coronal B-TFE, axial B-TFE, and contrast-enhanced MRA, with BolusTrak for post-dynamic imaging start time.

ExamCard overview

Images

Coronal B-TFE Survey This was done on inspiration breath hold and angled with branches from routine survey.Axial B-TFE Survey This was done on inspiration breath hold as well. Slices were angled off of coronal image.BolusTrak Real time contrast bolus injection image where post-contrast dynamic was initiated. The patient's breath was held as contrast was entering the heart; and scan was started simultaneously.
Coronal B-TFE Survey
Axial B-TFE Survey
BolusTrak
This was done on inspiration breath hold and angled with branches from routine survey.
This was done on inspiration breath hold as well. Slices were angled off of coronal image.
Real time contrast bolus injection image where post-contrast dynamic was initiated. The patient's breath was held as contrast was entering the heart; and scan was started simultaneously.

Patient preparation

Patient preparation consisted of the removal of street clothes, as well as jewelry. A hospital gown was provided for patient comfort. An IV was started prior to entering the room, which was then connected to the extention tubing of the power injector. Patient was positioned supine on the table and posterior elements of the SENSE Body coil. The anterior element was placed over the patient parallel with the posterior elements and secured with velcro straps. Patient was landmarked and positioned inside the Quadrature Body coil.

Contrast agent / injection protocol

Using the power injector, a total of 30 ml of gadolinium was injected at a rate of 2 ml/sec. The injection took place using the power injector using 30 ml of gadolinium being pushed at a rate of 2 ml/sec. This was followed by 20 ml of saline also being pushed at a rate of 2 ml/sec. The autoview window was opened to demonstate the BolusTrak images and the location of contrast for breathing instruction and post contrast dynamic start time.

Post-processing / analysis

The breath-hold contrast-enhanced images were loaded into the VolumeView package in advanced viewing environment and MIP images were created with a foot-to-head rotation and a left-to-right rotation.


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May 14, 2008

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ExamCard
Achieva 1.5T
Release 2
Body, Interventional, Lungs, mra, pulmonary arteries, Vascular
 

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