How Does Densitometry Help Diagnose Hair Loss?

August 17th, 2006

Q: Dr. Bernstein, I was reading about a densitometer on your website. What is it and what is it actually used for?

A: The hair densitometer was introduced to hair restoration surgeons by Dr. Rassman in 1993. It is a small, portable, instrument that has a magnifying lens and an opening of 10mm2.

To use it, the doctor clips the hair short (~ 1-mm) and the instrument is then placed on the scalp. The doctor counts the total number of hairs in the field, looks at the number of hairs per follicular unit and assesses the diameter of the hair, looking in particular for abnormal levels of miniaturization (decreased hair shaft diameter caused by the effects of DHT).

The densitometer can increase the accuracy of the diagnosis of genetic hair loss by picking up early miniaturization.

It can also better assess a person’s donor hair supply, thus helping to determine which patients are candidates for a hair transplant.

Densitometry has helped us define the conditions of diffuse patterned and unpatterned hair loss (DPA and DUPA) and help to refine the diagnosis of hair loss in women.

Related Posts:

Rating:  1 Star2 Stars3 Stars4 Stars5 Stars  

Topic:  

Tags:  , , , , , , , , , , , , , , ,
Posted by Robert M. Bernstein M.D. on August 17th, 2006 at 1:18 pm


Browse Hair Restoration Answers by topic:









© 2005-2016 Bernstein Medical, P.C. All Rights Reserved.

ARTAS, ARTAS Hair Studio, and RESTORATION ROBOTICS logo are among the trademarks and/or registered trademarks of Restoration Robotics, Inc. in the United States and/or other countries.