Abstract
Diffusion imaging acquired with echo-planar imaging (EPI) is usually performed with parallel imaging to reduce geometric distortions, especially at high fields. This study reports the occurrence of pseudolesions in EPI with parallel imaging. The unfolding artifacts are attributed as arising from a mismatch between RF sensitivity profiles and distorted acquisition data in the presence of susceptibility effects, plus strong signals on the b = 0 images. Examples of pseudolesions from the eyeballs are shown, and remedies are suggested.
| Original language | English |
|---|---|
| Pages (from-to) | 1099-1101 |
| Number of pages | 3 |
| Journal | American Journal of Neuroradiology |
| Volume | 28 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Jun 2007 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Clinical Neurology
- Radiology Nuclear Medicine and imaging
- Radiological and Ultrasound Technology
Cite this
Pseudolesions arising from unfolding artifacts in diffusion imaging with use of parallel acquisition : Origin and remedies. / Chou, M. C.; Wang, C. Y.; Liu, H. S.; Chung, H. W.; Chen, Cheng Yu.
In: American Journal of Neuroradiology, Vol. 28, No. 6, 06.2007, p. 1099-1101.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Pseudolesions arising from unfolding artifacts in diffusion imaging with use of parallel acquisition
T2 - Origin and remedies
AU - Chou, M. C.
AU - Wang, C. Y.
AU - Liu, H. S.
AU - Chung, H. W.
AU - Chen, Cheng Yu
PY - 2007/6
Y1 - 2007/6
N2 - Diffusion imaging acquired with echo-planar imaging (EPI) is usually performed with parallel imaging to reduce geometric distortions, especially at high fields. This study reports the occurrence of pseudolesions in EPI with parallel imaging. The unfolding artifacts are attributed as arising from a mismatch between RF sensitivity profiles and distorted acquisition data in the presence of susceptibility effects, plus strong signals on the b = 0 images. Examples of pseudolesions from the eyeballs are shown, and remedies are suggested.
AB - Diffusion imaging acquired with echo-planar imaging (EPI) is usually performed with parallel imaging to reduce geometric distortions, especially at high fields. This study reports the occurrence of pseudolesions in EPI with parallel imaging. The unfolding artifacts are attributed as arising from a mismatch between RF sensitivity profiles and distorted acquisition data in the presence of susceptibility effects, plus strong signals on the b = 0 images. Examples of pseudolesions from the eyeballs are shown, and remedies are suggested.
UR - http://www.scopus.com/inward/record.url?scp=34250804379&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34250804379&partnerID=8YFLogxK
U2 - 10.3174/ajnr.A0532
DO - 10.3174/ajnr.A0532
M3 - Article
VL - 28
SP - 1099
EP - 1101
JO - American Journal of Neuroradiology
JF - American Journal of Neuroradiology
SN - 0195-6108
IS - 6
ER -