Transcript Longport High Resolution Ultrasound

Longport High Resolution Ultrasound
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System Description
Longport’s high resolution ultrasound system the EPISCAN-I-200 has been
designed to image the skin and underlying few centimetres of soft tissue
with great clarity. Ultrasound of centre frequency as high as 50MHz can be
utilized to provide clear images of the skin’s structure, visualise the impact
of many of the diseases and injuries that inflict this region and monitor the
impact of treatments.
The EPISCAN’s software operates under Windows XP and has been
designed to be user friendly as well as providing the user with a series of
features and functions that allow image annotations and measurements to be
performed as well as comprehensive patient record keeping. Further, digital
photographs can be imported.
The EPISCAN has been designed to occupy a small space in a clinician’s
office or treatment area and can positioned on a small trolley or a desk.
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Dermatological Applications
Applications include:
• Skin lesion mapping
• Monitoring the impact of aesthetic procedures on the
skin
• Assessing the impact of medications on the skin
• Wound and scar assessment
• General assessment of skin conditions and diseases
and the monitoring of treatments
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30MHz Ultrasound Image of Inner Arm
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30MHz Ultrasound Image of Outer Arm
Note increased skin
thickness and reduced
reflections from upper
levels of dermis compared
with previous inner arm
scan. These changes are
believed to be the result of
sun induced damage.
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30MHz Ultrasound Image of Forehead
Wrinkle
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30MHz Ultrasound Image of Nail Bed
Nail
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30MHz Ultrasound Image of Skin Lesion
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40MHz Ultrasound Image of Skin Structure
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40MHz Image of Hair Follicle
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50 MHz Image of Hair Follicle
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Impact Of Different Palettes
30MHz Image with different palettes employed (a range of palettes
are available through the EPISCAN software)
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Skin Lesion
Image With
Measurements
30MHz
Ultrasound
Image
of Skin Lesion
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Skin Lesion
Image With
Measurements
30MHz
Ultrasound
Image
of Skin Lesion
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Quantitative Assessment of Images
Many applications of the EPISCAN relate to assessing the impact of a treatment or
process, where the user is looking to measure the differences to result from their
intervention normally over time. The EPISCAN offers a series of tools to help
quantitatively measure changes that may occur as well as providing the user with
the ability to visually qualitatively asses sequences of images tiled on the screen.
Most simply quantitative measurements can be linear measurements or area
measurements, for example measuring dermal thickness. The EPISCAN also
provides the user with the means to compare the make-up of the reflected signals
that is used to create the images.
The following example assess the signal strength of each pixel that makes up the
image or from a defined area of the image.
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Impact of Moisturizer on Skin
Pre Moisturizer
Moisturizer Saturation
1hr after Removal of
Surplus Moisturizer
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Pixel Analysis
The previous images show the same area of skin before, during and one hour
after saturation with a moisturiser. One each image an identical area was defined
and the pixel intensity distribution determined within that defined area. The
resultant distribution plots are shown on the page following this.
These plots show that prior to the application of the moisturizer the average
intensity of the pixels was higher and that one hour after the removal of the
surplus moisturizer there had been a small but measurable change back towards
the pre application condition. (This trend is as expected as moisturizing or
hydrating of the skin lessens the ultrasound reflections.) The final page of this
sequence shows numerical representation of the distribution plots.
Changes in collagen resulting from various treatments are expected to be
assessable using this approach, thus providing the clinician with a numerical
representation of skin ageing or rejuvenation.
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Distribution of Pixel Intensity for
Moisturizing Scans
2000
1800
1600
Number of Pixels
1400
1200
Pre Moisturizer
1000
Moisturizer
800
600
1hr After Application
400
200
0
0
20
40
60
80
100
Intensity Level
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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
91.63
103.35
99.8
Coefficient of
variation (%)
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System Specifications
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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
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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 including into
Microsoft Office programs
Digital photographs can be imported
User selectable images size up to 1024
x 2048 pixels
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Further Information
For further information on this system and its applications and global sales
enquiries please contact:
PPM Consult Ltd
Business web site: PPMconsult.com
Medical web site: a1med.net
E-mail: [email protected]
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