cohen ppt 2006
TRANSCRIPT
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A NEW DEVICEA NEW DEVICEFOR MEASURINGFOR MEASURING
HAIR LOSS & GROWTHHAIR LOSS & GROWTH
Bernard Cohen, MDBernard Cohen, MDDIPLOMATE, AMERICAN BOARD OF HAIR RESTORATION SURGERYDIPLOMATE, AMERICAN BOARD OF HAIR RESTORATION SURGERY
March 17, 2006March 17, 2006ISHRS ANNUAL MEETING --- SAN DIEGO, CAISHRS ANNUAL MEETING --- SAN DIEGO, CA
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A method and device for measuringA method and device for measuringfluctuations in fluctuations in
the cross-sectional area of hair inthe cross-sectional area of hair ina pre-determined area of scalpa pre-determined area of scalp
CohenCohenUS PATENTUS PATENT 6,993,8516,993,851
Feb 7, 2006Feb 7, 2006
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MEDICINE = NUMBERSMEDICINE = NUMBERS
•Blood PressureBlood Pressure•VisionVision•GlucoseGlucose•CholesterolCholesterol
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NUMBERS DETERMINE NUMBERS DETERMINE
DIAGNOSIS & TREATMENTDIAGNOSIS & TREATMENT
• BP 170/92 BP 170/92 120/80120/80• Vision 35/40 Vision 35/40 20/2020/20• Glucose 220 Glucose 220 110110• Cholesterol 274 Cholesterol 274 180180
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IF IT CANIF IT CAN’’T BET BE
MEASUREDMEASURED IT CAN IT CAN’’T BET BE
MANAGEDMANAGED
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WITHOUTWITHOUT MEASUREMENTMEASUREMENT
THERE IS NOTHERE IS NO
MEDICINEMEDICINE OR OR
SCIENCESCIENCE
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At presentAt present
OFFICE PHYSICIANSOFFICE PHYSICIANSare unable to measureare unable to measure
HAIR LOSS & GROWTHHAIR LOSS & GROWTH
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HAIR LOSSHAIR LOSSAFFECTSAFFECTS
75% of all adult men 75% of all adult men 10% of women over 5010% of women over 50
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IN THE USA ALONEIN THE USA ALONE
HAIR LOSSHAIR LOSS TREATMENTTREATMENTIS AIS A
$2 BILLION$2 BILLIONINDUSTRYINDUSTRY
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NORWOOD SYSTEMNORWOOD SYSTEM
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PHOTOGRAPHYPHOTOGRAPHYMINIMALMINIMAL MILDMILD
MODERATEMODERATE SEVERESEVERE
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HAIR COUNTINGHAIR COUNTING
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NORMAL BALDING
HAIR COUNTINGHAIR COUNTINGA 50 micron hair and a 70 micron hair both A 50 micron hair and a 70 micron hair both countcount as as
ONE HAIRONE HAIR
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r2 = CROSS SECTIONAL AREA80 microns = 3.14 x 1600 = 5024 microns80 microns = 3.14 x 1600 = 5024 microns22 72 microns = 3.14 x 1296 = 4069 microns72 microns = 3.14 x 1296 = 4069 microns22
CHANGING THE CHANGING THE HAIR COUNTHAIR COUNT 10% 10%
CHANGES THE HAIR MASS CHANGES THE HAIR MASS 10%10%
CHANGING THE CHANGING THE HAIR DIAMETERHAIR DIAMETER 10% 10%CHANGES THE HAIR MASS CHANGES THE HAIR MASS 20%20%
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Meaningful hair measurementMeaningful hair measurementmust include bothmust include both
DENSITYDENSITY &&
DIAMETERDIAMETER
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EARLY ATTEMPT ATHAIR QUANTIFICATION
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MARKING THE SITEMARKING THE SITE
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ISOLATED 2 x 2 cm of SCALPISOLATED 2 x 2 cm of SCALP
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EARLY PROTOTYPEEARLY PROTOTYPE
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HAIR CAPTURE ELEMENTHAIR CAPTURE ELEMENT
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CAPTURE & MEASURECAPTURE & MEASURE
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VALUE DISPLAYED ON SCREENVALUE DISPLAYED ON SCREEN
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HAIRHAIR QUANTITYQUANTITY INDEXINDEX
is is mmmm22 of HAIR of HAIR
perpercmcm22 of SKIN of SKIN
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the the
QUANTITY INDEXQUANTITY INDEX REFLECTS REFLECTS
• Increase in DiameterIncrease in Diameter• Decrease in DiameterDecrease in Diameter• Increase in Density (hair count)Increase in Density (hair count)• Decrease in Density (hair count)Decrease in Density (hair count)
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964382
82/96 = .85 = 85% 82/96 = .85 = 85%
15% HAIR LOSS IN ZONE 315% HAIR LOSS IN ZONE 3
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HAIR QUANTIMETER HAIR QUANTIMETER MAY BE USED TOMAY BE USED TO
• Track shedding (effluvium) Track shedding (effluvium)
• Track thinning (balding) Track thinning (balding)
• Evaluate hair growth drugs & devicesEvaluate hair growth drugs & devices
• Manage hair loss treatmentManage hair loss treatment
• Identify Identify ““hair losshair loss”” patients who have no loss. patients who have no loss.
• Detect early balding many years in advanceDetect early balding many years in advance
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ADVANTAGESADVANTAGES• Quick - easy - inexpensive - convenientQuick - easy - inexpensive - convenient• Precise - accurate - durablePrecise - accurate - durable• Generates easily understood numbersGenerates easily understood numbers• Numbers quantify severity of hair lossNumbers quantify severity of hair loss• Numbers monitor success of treatmentNumbers monitor success of treatment• No hair or skin is cutNo hair or skin is cut• No lab or doctor is requiredNo lab or doctor is required• More scientific than present office methodsMore scientific than present office methods• Eliminates hedging, guessing, and estimationEliminates hedging, guessing, and estimation