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Is pericardium a suitable calibration reference in integrated backscatter analysis?
- Source :
- Ultrasound in Medicine & Biology. 30:1063-1066
- Publication Year :
- 2004
- Publisher :
- Elsevier BV, 2004.
-
Abstract
- To evaluate if pericardium is a suitable calibration reference in the integrated backscatter (IBS) analysis, the grossly normal pericardial specimens from 23 patients without a history of pericarditis were mounted on a steel platform and immersed in a 0.9% saline bath. The 2-D IBS images acquired at the uniform time gain compensation settings of 50 and 70 dB were analyzed. For the pericardial IBS, the limits of agreement for intraobserver and interobserver measurements were −1.2 to 1.4 dB and −1.6 to 2.2 dB, respectively. However, the calibrated IBS intensity of the pericardium presented a rather wide range of variation and was −13 ± 5 (−5 to −29) and −10 ± 4 (−4 to −22) dB at the overall gain settings of 50 and 70 dB, respectively. Conclusively, pericardium may not be an ideal IBS calibration reference in a population study of cardiac tissue characterization. (E-mail: wcvoon@giga.net.tw )
- Subjects :
- Male
Aging
medicine.medical_specialty
Materials science
Acoustics and Ultrasonics
Biophysics
Time gain compensation
Pericarditis
Image Interpretation, Computer-Assisted
medicine
Calibration
Humans
Pericardium
Radiology, Nuclear Medicine and imaging
Integrated backscatter
Aged
Radiological and Ultrasound Technology
business.industry
Limits of agreement
Tissue characterization
Middle Aged
medicine.disease
Surgery
Intensity (physics)
medicine.anatomical_structure
Echocardiography
Female
Nuclear medicine
business
Subjects
Details
- ISSN :
- 03015629
- Volume :
- 30
- Database :
- OpenAIRE
- Journal :
- Ultrasound in Medicine & Biology
- Accession number :
- edsair.doi.dedup.....33a185ad773023bb331deecafaef7791
- Full Text :
- https://doi.org/10.1016/j.ultrasmedbio.2004.06.001