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LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC. High Frequency Ultrasound, its Application in Wound Assessment and Prevention. - PowerPoint PPT Presentation
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LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC
High Frequency Ultrasound, its Application in Wound Assessment and
Prevention
LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC
EPISCAN I-200
The EPISCAN is a high frequency ultrasound scanner that utilises ultrasound in the range 20 to 50MHz to image skin and underlying soft tissue.
The system is portable such that it can be taken to the patients bedside as well as being used in “walk in” clinics
The system has been designed to be user friendly and
includes measurement and images assessment tools.
LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC
EPISCAN - I - 200
LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC
50 MHz Image of Skin
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Indications for Use
• Skin cancers and other lesion mapping• Wound and scar assessment• Burn assessment • Skin assessment for pressure ulcer detection
and prevention• Monitoring the impact of aesthetic procedures• Assessing the impact of medications on the
skin• Implant assessment• Superficial musculoskeletal diagnosis
LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC
Example Images
Skin Cancer
Musculoskeletal Imaging
Spider Vein
Approvals and Clearances
Diagnostic ultrasound is a safe and well established imaging modality that remains the preferred imaging tool of clinicians around the world
Longport’s EPISCAN system has gained both European CE and US FDA clearance.
Units are also UL kite marked
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““EPISCAN I-200 high-frequency ultrasound system is a EPISCAN I-200 high-frequency ultrasound system is a specialized system for imaging the skin and underlying soft tissue. specialized system for imaging the skin and underlying soft tissue. It is intended for use by clinicians, or under the direction of It is intended for use by clinicians, or under the direction of physicians for imaging and analysis in research environments as physicians for imaging and analysis in research environments as well as clinical settings including medical / surgical dermatology well as clinical settings including medical / surgical dermatology assessment and diagnosis (aesthetic and therapeutic), plastic / assessment and diagnosis (aesthetic and therapeutic), plastic / reconstructive surgical planning, wound assessment and reconstructive surgical planning, wound assessment and management, skin assessment for pressure ulcer detection and management, skin assessment for pressure ulcer detection and prevention and superficial musculoskeletal diagnosis.”prevention and superficial musculoskeletal diagnosis.”
510K 062671
FDA Clearance
Wound Prevention and Assessment
One of the main applications of the EPISCAN is the prevention and assessment of wounds.
Intervention based upon the high frequency ultrasound images has been shown to result in the prevention of open wounds and the accelerated healing of existing wounds
LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC
Early Detection of WoundsNormal and Abnormal Ultrasound Images
of the Heel
Epidermis
Dermis
Subcutaneoustissue
Bone
Normal ultrasound of heel
Epidermis
Dermis
Subcutaneoustissue
Edema
Bone
Abnormal ultrasound of heel
Note increased black areas in the abnormal scan, which represent oedema resulting from the early phase of wound development. No visible sign of breakdown will be evident at the skin surface
• We conclude that EPISCAN, in extended care rehabilitation units, is a cost-benefit to providers for preventing costly pressure ulcers. The expected cost savings for the at-risk patient is approximately $5,300.00 per resident over a 1 year period. Ron Shannon, quote from poster presented at SAWC April 2007
• Use of ultrasound for early care planning is a new concept but can have a significant impact on clinical management of risk. Karen Zulkowski, quote from poster presented at SAWC April 2007.
…..the scanner’s utility has already been realized through reduced treatment costs the incidence of pressure ulcers at Hawfields had dropped to 2 percent in February 2007, from 7 percent in September 2005, and the nurses’ treatment time has been better utilized in other direct-care patient issues such as teaching, documentation, and assessment-related procedures. Max Kernodle (Longport customer) quote from article in Provider journal, April 2007
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Recent comments on wound prevention from studies conducted with Longport’s technology and from customer
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Wound Assessment
High frequency ultrasound images can provide data on issues such as wound undermining and sinus tracks as well as detect changes to the wound bed.
Unlike visual assessment ultrasound can see deep into the wound providing the clinician with early data on the evolving wound
Ultrasound does not cause damage to the wound
LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC
Punch Biopsy Sequence
Pre-Biopsy After 7 Days
After 14 Days After 21 Days
After 28 Days After 35 Days
After 48 Days
After 63 Days
1 monthTime 0 2 weeksNormal 2 Months
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Imaging sequence showing the healing of a chronic wound
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Wound Undermining
Undermining
Epidermis
Dermis
Wound
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Quantitative Images Assessment
In many situation the clinician is looking to determine change that has that occurred as the result of a treatment plan and although the EPISCAN ultrasound images provide a reliable pictorial representation it is often preferred to have numerical data to work with.
Longport has developed software such that quantitative data can be extracted from the images. The approach taken is to analysis the distribution of signal strength used to write each pixel of the image or defined area of the image.
Examples of the data generated are shown in the following slides
0
200
400
600
800
1000
1200
1400
1600
1800
2000
0 20 40 60 80 100
Pre Moisturizer
Moisturizer
1hr After Application
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Distribution of Pixel Intensity for Skin Having Moisturizer Applied
Intensity Level
Num
ber of Pixels
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Comparative Statistical Analysis of the Three Moisture Scans
Pre Moisturizer Moisturizer Applied
1 hr After Application
Median Intensity
40 29 31
Variance 268341.49 341359.49 318341.94
Coefficient of variation (%)
91.63 103.35 99.8
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% Cumulative Pixel Data
0
20
40
60
80
100
120
113 25 37 49 61 73 85 97
109
121
133
145
157
169
181
193
205
217
229
241
253
Pixel Intensity
Cum
ulat
ive
%
NormalTime 02 Weeks4 Weeks8 Weeks12 Weeks16 Weeks
Changes to a Wound Bed with Time
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System Specifications
• Various probes at centre frequencies between 16 & 50MHz
• 15mm scan length• Digitalisation rate up to 200 million
samples per second• Wireless and cable net working
capability• CD/DVD Read/Write ROM• Multiple memory card slots• Blue tooth enabled• 17 inch screen (1280 x 1024)• Footswitch option• CE/UL Certified, US FDA Marketing
Clearance obtained
• Windows XP Operating system• Linear & area measurement plus text
annotation functions• Integrated relational database for the
patient / image record retention• Multiple image viewing• Image analysis functions• Multiple image viewing palette options• Image export as DICOM and BMP files• Drag and drop capability into Microsoft
Office programs• Digital photographs can be integrated• User selectable images size up to
1024 x 2048 pixels
LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC / High-Resolution Ultrasound / LONGPORT, INC
For further information on this system and its applications please contact:
PPM Consult Ltd
Business web site: PPMconsult.com Medical web site: a1med.net
E-mail: [email protected]