Biomedical subjects

Jiann-Woei Huang

Publications and source records attributed to Jiann-Woei Huang.

2 recordsLinked to original sources

PubMed2004

Is pericardium a suitable calibration reference in integrated backscatter analysis?

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.

Aged↗

PubMed2002

Impact of management of abdominal aortic dissection following the successful operation of annulo-aortic ectasia in Marfan's syndrome--a case report.

A 21-year-old female patient with Marfan's syndrome suffering from chronic ascending aortic dissection and aortic insufficiency was treated with total aortic root replacement by Cabrol technique (or procedure). The post-operative course was smooth and the patient recovered satisfactorily with very stable hemodynamic condition and good appetite. Unfortunately she complained of sudden severe abdominal pain followed by complete anuria on the fifth post-operative day. The MRI demonstrated abdominal aortic dissection with malperfusion of all the abdominal organs. Rapid increase of aminotransferases (SGOT and SGPT), severe acidosis and rapid deterioration of vital signs within 10 hours discouraged us from trying surgical intervention. The puzzle of management in those cases will be discussed.

Adult↗