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/sup 1/H-NMR chemical shift imaging suitable for low field systems

Journal Article:

Abstract

An echo-time encoding proton NMR chemical shift imaging proposed by Dixon is extended to be applicable to low filed systems. The method utilizes the small phase angle between magnetic vectors of water and lipid protons to decrease the signal decays with spin-spin relaxation. The inevitable phase error caused by the static field inhomogeneity is corrected by using phase images of phantom measured under the same conditions as the actual measurements. The experiments were carried out using CuSO/sub 4/ doped water and vegetable oil at 0.5 T. Two chemical shift images could be clearly resolved with only one scan when the field inhomogeneity was larger than the chemical shift difference.
Publication Date:
Dec 01, 1986
Product Type:
Journal Article
Reference Number:
AIX-18-069153; EDB-87-112299
Resource Relation:
Journal Name: Med. Imag. Technol.; (Japan); Journal Volume: 4:4
Subject:
62 RADIOLOGY AND NUCLEAR MEDICINE; NMR IMAGING; CHEMICAL SHIFT; IMAGE PROCESSING; CORRECTIONS; ERRORS; HYDROGEN 1; IMAGE SCANNERS; IMAGES; MAGNETIC FIELDS; PHANTOMS; SPIN-SPIN RELAXATION; DIAGNOSTIC TECHNIQUES; HYDROGEN ISOTOPES; ISOTOPES; LIGHT NUCLEI; MOCKUP; NUCLEI; ODD-EVEN NUCLEI; PROCESSING; RELAXATION; STABLE ISOTOPES; STRUCTURAL MODELS; 550602* - Medicine- External Radiation in Diagnostics- (1980-)
OSTI ID:
6407303
Research Organizations:
Hitachi Ltd., Kokubunji, Tokyo, Japan. Central Research Lab.
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: CODEN: MITEE
Submitting Site:
INIS
Size:
Pages: 347-353
Announcement Date:

Journal Article:

Citation Formats

Yamamoto, Etsuji, Onodera, Takashi, Shiono, Hidemi, and Kohno, Hideki. /sup 1/H-NMR chemical shift imaging suitable for low field systems. Japan: N. p., 1986. Web.
Yamamoto, Etsuji, Onodera, Takashi, Shiono, Hidemi, & Kohno, Hideki. /sup 1/H-NMR chemical shift imaging suitable for low field systems. Japan.
Yamamoto, Etsuji, Onodera, Takashi, Shiono, Hidemi, and Kohno, Hideki. 1986. "/sup 1/H-NMR chemical shift imaging suitable for low field systems." Japan.
@misc{etde_6407303,
title = {/sup 1/H-NMR chemical shift imaging suitable for low field systems}
author = {Yamamoto, Etsuji, Onodera, Takashi, Shiono, Hidemi, and Kohno, Hideki}
abstractNote = {An echo-time encoding proton NMR chemical shift imaging proposed by Dixon is extended to be applicable to low filed systems. The method utilizes the small phase angle between magnetic vectors of water and lipid protons to decrease the signal decays with spin-spin relaxation. The inevitable phase error caused by the static field inhomogeneity is corrected by using phase images of phantom measured under the same conditions as the actual measurements. The experiments were carried out using CuSO/sub 4/ doped water and vegetable oil at 0.5 T. Two chemical shift images could be clearly resolved with only one scan when the field inhomogeneity was larger than the chemical shift difference.}
journal = {Med. Imag. Technol.; (Japan)}
volume = {4:4}
journal type = {AC}
place = {Japan}
year = {1986}
month = {Dec}
}