Subject: Re: Multifrequency Tympanometry From: megha jp <meghajp11@xxxxxxxx> Date: Sun, 15 Oct 2006 05:48:42 +0100--0-2037554796-1160887722=:70980 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Dear sir, Thank you sir again for answering my questions with patience. So as RF increases or decreases, is it so that the delta B value becomes zero more quickly or late depending on the RF of the middle ear? Sir, we were planning to conduct a study on delta B, Delta G, delta theta and RF and establish a normative range for all the parameters in neonates from 1day to 1 month. As we did on few neonates, we noted that the delta B value displayed after the sweeps, is a negative value or a positive value and never showed zero (though the delta B graph crossed the RF estimate line). for example: delta B: -0.26mmho (as displayed on GSI after the 2 sweeps) delta theta: -41deg RF: 260 Hz Sir this means that at delta B -0.26, RF is 260, but this is wrong as delta B should be zero to get RF. Then what is the value of delta B is the GSI displaying? Then we thought its wrong to take as a range for delta B parameter, as it is frequency dependent value. Is it so sir? How can we refine our paper? I think then its not possible even to take as a range for delta G. Thank you sir, I would be pleased to know your reply. With regards, Megha --------------------------------- Find out what India is talking about on - Yahoo! Answers India Send FREE SMS to your friend's mobile from Yahoo! Messenger Version 8. Get it NOW --0-2037554796-1160887722=:70980 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: 8bit <div>Dear sir,</div> <div>Thank you sir again for answering my questions with patience.</div> <div>So as RF increases or decreases, is it so that the delta B value becomes zero more quickly or late depending on the RF of the middle ear? </div> <div>Sir, we were planning to conduct a study on delta B, Delta G, delta theta and RF and <STRONG><EM>establish a normative range for all the parameters</EM></STRONG> in neonates from 1day to 1 month. As we did on few neonates, we noted that the delta B value displayed after the sweeps, is a negative value or a positive value and never showed zero (though the delta B graph crossed the RF estimate line).</div> <div>for example: </div> <div>delta B: -0.26mmho (as displayed on GSI after the 2 sweeps)</div> <div>delta theta: -41deg</div> <div>RF: 260 Hz</div> <div>Sir this means that at delta B -0.26, RF is 260, but this is wrong as delta B should be zero to get RF. Then what is the value of delta B is the GSI displaying?</div> <div> Then we thought its wrong to take as a range for delta B parameter, as it is frequency dependent value. Is it so sir? How can we refine our paper? I think then its not possible even to take as a range for delta G.</div> <div>Thank you sir, I would be pleased to know your reply.</div> <div>With regards,</div> <div>Megha</div><p>  <hr size=1></hr> Find out what India is talking about on - <a href="http://us.rd.yahoo.com/mail/in/yanswers/*http://in.answers.yahoo.com/">Yahoo! Answers India</a> <BR> Send FREE SMS to your friend's mobile from Yahoo! Messenger Version 8. <a href="http://us.rd.yahoo.com/mail/in/messengertagline/*http://in.messenger.yahoo.com">Get it NOW</a> --0-2037554796-1160887722=:70980--