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The Use of Angle Correction in Assessment of the Peak Systolic Velocity of the Fetal Middle Cerebral Artery by D.E. Abel; S.C. Grambow; L.R. Brancazaio; B.S. Hertzberg; K.A. Hall; P.J. McNally; N. Moore; J.E. Pelton is a Medicine article available to read on EtoBox.
What is The Use of Angle Correction in Assessment of the Peak Systolic Velocity of the Fetal Middle Cerebral Artery about?
Methods: US phantoms were made using a petroleum gel. Corn starch was used to vary the echotexture. Three phantoms were created with (1) no starch (hypoechoic), (2) 5 ml of starch (isoechoic), or (3) 15 ml of starch (hyperechoic) added. Each phantom had 2-cm diameter hypoechoic, isoechoic, and hyperechoic gel targets imbedded. Implanted devices were a 22-gauge needle and a 14-gauge radiofrequency ablation probe (shaft and tines) introduced into the background gel at 20 and 60 degree inclinations. 3D US volume data sets were acquired. Target and needle conspicuity were judged using a 5-point visual rating scale. The 2D MPR image was held as the reference standard. VR image conspicuity was judged for combinations of 7 different post processing display parameters and compared to MPR images. Results: In only 1 of 9 possible background and target echotexture combinations, and 0 of 56 background and device combinations did VR imaging improve conspicuity compared to MPR. In all other combinations, VR resulted in significant degradation (72-100%) compared to MPR. VR provided diagnostically adequate visualization with regularity (72-69%) when the target was more echogenic than the backgroun
Who reads The Use of Angle Correction in Assessment of the Peak Systolic Velocity of the Fetal Middle Cerebral Artery?
It is typically read by researchers, students, and practitioners in Medicine.
- Author
- D.E. Abel; S.C. Grambow; L.R. Brancazaio; B.S. Hertzberg; K.A. Hall; P.J. McNally; N. Moore; J.E. Pelton
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0301-5629)
- Published
- 2003
- Language
- EN
- Field
- Medicine (Health Sciences)