HASTE sequence with parallel acquisition and T2 decay compensation: application to carotid artery imaging

Ling Zhang; Eugene G. Kholmovski; Junyu Guo; Seong Eun Kim Choi; Glen R. Morrell; Dennis L. Parker

doi:10.1016/j.mri.2008.05.009

HASTE sequence with parallel acquisition and T2 decay compensation: application to carotid artery imaging

Ling Zhang, Eugene G. Kholmovski, Junyu Guo, Seong Eun Kim Choi, Glen R. Morrell, Dennis L. Parker

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

T2-weighted carotid artery images acquired using the turbo spin-echo (TSE) sequence frequently suffer from motion artifacts due to respiration and blood pulsation. The possibility of using HASTE sequence to achieve motion-free carotid images was investigated. The HASTE sequence suffers from severe blurring artifacts due to signal loss in later echoes due to T2 decay. Combining HASTE with parallel acquisition (PHASTE) decreases the number of echoes acquired and thus effectively reduces the blurring artifact caused by T2 relaxation. Further improvement in image sharpness can be achieved by performing T2 decay compensation before reconstructing the PHASTE data. Preliminary results have shown successful suppression of motion artifacts with PHASTE imaging. The image quality was enhanced relative to the original HASTE image, but was still less sharp than a non-motion-corrupted TSE image.

Original language	English (US)
Pages (from-to)	13-22
Number of pages	10
Journal	Magnetic Resonance Imaging
Volume	27
Issue number	1
DOIs	https://doi.org/10.1016/j.mri.2008.05.009
State	Published - Jan 2009
Externally published	Yes

Keywords

Carotid artery imaging
HASTE
Motion suppression
T2 blurring
k-Space inherited parallel acquisition

ASJC Scopus subject areas

Biophysics
Biomedical Engineering
Radiology Nuclear Medicine and imaging

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10.1016/j.mri.2008.05.009

Cite this

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title = "HASTE sequence with parallel acquisition and T2 decay compensation: application to carotid artery imaging",

abstract = "T2-weighted carotid artery images acquired using the turbo spin-echo (TSE) sequence frequently suffer from motion artifacts due to respiration and blood pulsation. The possibility of using HASTE sequence to achieve motion-free carotid images was investigated. The HASTE sequence suffers from severe blurring artifacts due to signal loss in later echoes due to T2 decay. Combining HASTE with parallel acquisition (PHASTE) decreases the number of echoes acquired and thus effectively reduces the blurring artifact caused by T2 relaxation. Further improvement in image sharpness can be achieved by performing T2 decay compensation before reconstructing the PHASTE data. Preliminary results have shown successful suppression of motion artifacts with PHASTE imaging. The image quality was enhanced relative to the original HASTE image, but was still less sharp than a non-motion-corrupted TSE image.",

keywords = "Carotid artery imaging, HASTE, Motion suppression, T2 blurring, k-Space inherited parallel acquisition",

author = "Ling Zhang and Kholmovski, {Eugene G.} and Junyu Guo and Choi, {Seong Eun Kim} and Morrell, {Glen R.} and Parker, {Dennis L.}",

year = "2009",

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doi = "10.1016/j.mri.2008.05.009",

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T1 - HASTE sequence with parallel acquisition and T2 decay compensation

T2 - application to carotid artery imaging

AU - Zhang, Ling

AU - Kholmovski, Eugene G.

AU - Guo, Junyu

AU - Choi, Seong Eun Kim

AU - Morrell, Glen R.

AU - Parker, Dennis L.

PY - 2009/1

Y1 - 2009/1

N2 - T2-weighted carotid artery images acquired using the turbo spin-echo (TSE) sequence frequently suffer from motion artifacts due to respiration and blood pulsation. The possibility of using HASTE sequence to achieve motion-free carotid images was investigated. The HASTE sequence suffers from severe blurring artifacts due to signal loss in later echoes due to T2 decay. Combining HASTE with parallel acquisition (PHASTE) decreases the number of echoes acquired and thus effectively reduces the blurring artifact caused by T2 relaxation. Further improvement in image sharpness can be achieved by performing T2 decay compensation before reconstructing the PHASTE data. Preliminary results have shown successful suppression of motion artifacts with PHASTE imaging. The image quality was enhanced relative to the original HASTE image, but was still less sharp than a non-motion-corrupted TSE image.

AB - T2-weighted carotid artery images acquired using the turbo spin-echo (TSE) sequence frequently suffer from motion artifacts due to respiration and blood pulsation. The possibility of using HASTE sequence to achieve motion-free carotid images was investigated. The HASTE sequence suffers from severe blurring artifacts due to signal loss in later echoes due to T2 decay. Combining HASTE with parallel acquisition (PHASTE) decreases the number of echoes acquired and thus effectively reduces the blurring artifact caused by T2 relaxation. Further improvement in image sharpness can be achieved by performing T2 decay compensation before reconstructing the PHASTE data. Preliminary results have shown successful suppression of motion artifacts with PHASTE imaging. The image quality was enhanced relative to the original HASTE image, but was still less sharp than a non-motion-corrupted TSE image.

KW - Carotid artery imaging

KW - HASTE

KW - Motion suppression

KW - T2 blurring

KW - k-Space inherited parallel acquisition

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HASTE sequence with parallel acquisition and T2 decay compensation: application to carotid artery imaging

Abstract

Keywords

ASJC Scopus subject areas

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