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Re: cme testFrom: DuBose, Terry (DuboseTerryJ@uams.edu)Fri Mar 8 07:32:49 2002
Dear SANGHVI5M@aol.com <mailto:SANGHVI5M@aol.com> I fear you have confused what is meant by perpendicular in this context. It is true that the best resolution is with the axial resolution, and the best echoes are returned by those structures (specular reflections from flat surfaces) that are perpendicular to the direction of beam travel, i.e. perpendicular to the axis of the beam. Lateral resolution are those structures that are measured transversely (perpendicular) to the beam, using beam width resolution. I can see this is a bit confusing. I hope this helps, if not please ask more questions and we will try to respond. Peace, Terry J. DuBose, M.S., RDMS Assistant Professor & Director, Diagnostic Medical Sonography Program CHRP, University of Arkansas for Medical Sciences Little Rock, Arkansas, USA 501-686-6510 http://www.io.com/~dubose/ <http://www.io.com/~dubose/> http://www.uams.edu/CHRP/dmshome.htm <http://www.uams.edu/CHRP/dmshome.htm> http://www.obgyn.net/us/panel/panel.htm <http://www.obgyn.net/us/panel/panel.htm> -----Original Message----- From: SANGHVI5M@aol.com [mailto:SANGHVI5M@aol.com] Sent: Friday, March 08, 2002 7:45 AM To: Multiple recipients of list ULTRASOUND Subject: cme test as per your article on breast, i took the cme test at the end of the articl. The question was axial resolution best identifies structures that are ,perpendicular to the beam is an incorrect answer, As went through my physics books, it is showing that best axial resolution is seen in the same axis of the beam and not perpendicular, please clarify which is the correct answer, also, the perpendicular to beam gives the best lateral resolution. please e mail me back with your in put and wether my answer is write or wrong.
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