Linked Life Data

10723889

Source:http://linkedlifedata.com/resource/pubmed/id/10723889

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2000-3-27
pubmed:abstractText
Foetal magnetocardiograms (FMCGs) were measured using a nine-channel SQUID system equipped with first-order gradiometers (60 mm baseline, 20 mm diameter). The system was installed in a magnetically shielded room in a hospital. The white noise level was less than 10 fT/square root of Hz, and FMCGs above 1 pT were detected. These results and the depth to the foetal heart were used to estimate the current dipole. The relationship between the current dipole (Q) and the gestation week (G) was calculated and the average performance was determined as Q = 18G - 295. By using the estimated foetal current dipole, the measurement limit (average value) between depth and gestation weeks was determined. When the depth from the pickup coil to the foetal heart is 50, 60, 70 and 80 mm, the first detectable gestation weeks of FMCGs above 1 pT measured by a first-order gradiometer with 60 mm baseline were determined at 21, 23, 26, and 30 weeks respectively, and the detectable gestation weeks in the case of a 30 mm baseline were determined at 22, 26, 30 and 36 weeks respectively.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0140-0118
pubmed:author
pubmed:issnType
Print
pubmed:volume
37
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
545-8
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Sensitivity of foetal magnetocardiograms versus gestation week.
pubmed:affiliation
Hitachi Ltd., Central Research Laboratory, Tokyo, Japan. kandori@crl.hitachi.co.jp
pubmed:publicationType
Journal Article