Pseudo Random Arterial Modulation (PRAM) | Novel MRI Approach to Measure Blood Flow and Transit Times

Mohammad Reza Taei-Tehrani

ISBN 10: 3659146773 / ISBN 13: 9783659146770

Published by LAP LAMBERT Academic Publishing, 2012

About this Item

Pseudo Random Arterial Modulation (PRAM) | Novel MRI Approach to Measure Blood Flow and Transit Times | Mohammad Reza Taei-Tehrani | Taschenbuch | 108 S. | Englisch | 2012 | LAP LAMBERT Academic Publishing | EAN 9783659146770 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.

Seller Inventory # 106424559

Bibliographic Details

• Title: Pseudo Random Arterial Modulation (PRAM) | Novel MRI Approach to Measure Blood Flow and Transit Times
• Publisher: LAP LAMBERT Academic Publishing
• Publication Date: 2012
• Language: English
• ISBN 10: 3659146773
• ISBN 13: 9783659146770
• Binding: Taschenbuch
• Condition: Neu
• Dimensions: 220W x 150H x 8D millimeters 220 millimeters width by 150 millimeters height by 8 millimeters depth
• Weight: 179 grams
• Seller catalogs:
  • Bücher

About this title

Synopsis

The Pseudo Random Arterial Modulation (PRAM) is a non-invasive MRI based method to measure blood flow. It does not require any contrast agent but rather uses water protons in the body as the contrast. PRAM is based on a pseudo random sequence of inversions and non-inversions of the arterial blood using radio frequency (RF) pulses at a labeling plane inferior to the imaging plane. A series of images are taken at the imaging plane and flow reconstructed from the transit time measurements. PRAM does not require separate control and label acquisition as is common in Arterial Spin Labeling (ASL) but rather measures the distribution of transit times to a voxel within one integrated scan. The PRAM method has been tested on a flow phantom and the results were in confirmation with the theoretical flow and velocity measurements. Subsequently the PRAM method was tested on a human leg and the results were comparable with the Ultrasound measurements. The final testing phase was performed on a human brain and the results were compared with the phased contrast MRA. The PRAM can measure the velocity profile and the transit time accurately and efficiently on any organ such as human brain.

About the Author

Dr. Tehrani is the MRI research physicist at Rutgers University Brain Imaging Center. He has recevied his Ph.D. in Biomedical Engineering from Columbia University, his MS and ME in Biomedical and computer Engineering from Rensselaer Polytechnic Institue, and BS in physics from University of Tehran. He has been working in MRI field since 1995.