• Popular
    • Medicine
    • Radiology
    • Cardiology
    • Surgery
    • Nanomedicine
    • Military Medicine
    • Rehab
  • Categories
    • Exclusive
    • A-D
      • Anesthesiology
      • Art
      • Cardiac Surgery
      • Cardiology
      • Critical Care
      • Dentistry
      • Dermatology
      • Diagnostics
    • E-I
      • Emergency Medicine
      • ENT
      • Genetics
      • Geriatrics
      • GI
      • Informatics
    • M-N
      • Medicine
      • Military Medicine
      • Nanomedicine
      • Net News
      • Neurology
      • Neurosurgery
      • Nuclear Medicine
    • O-P
      • Ob/Gyn
      • Oncology
      • Ophthalmology
      • Orthopedic Surgery
      • Pathology
      • Pediatrics
      • Plastic Surgery
      • Psychiatry
      • Public Health
    • R-V
      • Radiation Oncology
      • Radiology
      • Rehab
      • Reproductive Medicine
      • Space Medicine
      • Sports Medicine
      • Surgery
      • Thoracic Surgery
      • Urology
      • Vascular Surgery
  • SUBSCRIBE
  • Submit PR
  • About
  • Follow
    • Facebook
    • Twitter
    • Linkedin
    • Youtube
    • Instagram
    • RSS
  • Submit PR
  • Log in
Medgadget
Medgadget
  • Popular
    • Medicine
      Antibacterial Peptide Spray Safe for Use on Wounds

      Antibacterial Peptide Spray Safe for Use on Wounds

      Flexible Sensors Detect Heavy Metals in Sweat

      Flexible Sensors Detect Heavy Metals in Sweat

      Nanopore Sensor to Study Protein Aggregation in Neurodegeneration

      Nanopore Sensor to Study Protein Aggregation in Neurodegeneration

      Biobots Use Optogenetic Muscle Actuators for Movement

      Biobots Use Optogenetic Muscle Actuators for Movement

    • Radiology
      Tiny Patch for Cardiac Ultrasound Imaging

      Tiny Patch for Cardiac Ultrasound Imaging

      Ultrasound Tornado Rapidly Disrupts Blood Clots

      Ultrasound Tornado Rapidly Disrupts Blood Clots

      Exciting Medtech at the Healthcareᐩ Expo Taiwan

      Exciting Medtech at the Healthcareᐩ Expo Taiwan

      Fluorescence Imaging System Illuminates Tumor Depth

      Fluorescence Imaging System Illuminates Tumor Depth

    • Cardiology
      Tiny Patch for Cardiac Ultrasound Imaging

      Tiny Patch for Cardiac Ultrasound Imaging

      Belt Monitors Heart Failure Patients

      Belt Monitors Heart Failure Patients

      Camera Measures Blood Pressure with Quick Look

      Camera Measures Blood Pressure with Quick Look

      Monitoring Congestive Heart Failure Through Speech: Interview with Tamir Tal, CEO of Cordio Medical

      Monitoring Congestive Heart Failure Through Speech: Interview with Tamir Tal, CEO of Cordio Medical

    • Surgery
      Antibacterial Peptide Spray Safe for Use on Wounds

      Antibacterial Peptide Spray Safe for Use on Wounds

      Microneedle Bandage for Hemostatic Control

      Microneedle Bandage for Hemostatic Control

      Biobots Use Optogenetic Muscle Actuators for Movement

      Biobots Use Optogenetic Muscle Actuators for Movement

      Implantable Device Adheres to Muscle, Treats Atrophy

      Implantable Device Adheres to Muscle, Treats Atrophy

    • Nanomedicine
      Extra Hot Nanoparticles for Cancer Therapy

      Extra Hot Nanoparticles for Cancer Therapy

      Making Tumors Tastier for the Immune System

      Making Tumors Tastier for the Immune System

      Improved Membrane Coating for Anti-Cancer Nanoparticles

      Improved Membrane Coating for Anti-Cancer Nanoparticles

      Magnetic Bacteria Target Tumors

      Magnetic Bacteria Target Tumors

    • Military Medicine
      Device Measures Hemoglobin More Accurately in Dark Skin

      Device Measures Hemoglobin More Accurately in Dark Skin

      Fingertip Sensor Measures Lithium Levels in Sweat

      Fingertip Sensor Measures Lithium Levels in Sweat

      Fabric Makes Electricity from Movement to Power Wearables

      Fabric Makes Electricity from Movement to Power Wearables

      Wearable Uses Microneedles to Track Metabolism

      Wearable Uses Microneedles to Track Metabolism

    • Rehab
      Smart Walking Stick for Visually Impaired People

      Smart Walking Stick for Visually Impaired People

      Implantable Device Adheres to Muscle, Treats Atrophy

      Implantable Device Adheres to Muscle, Treats Atrophy

      Non-Invasive Spinal Modulation for Cerebral Palsy

      Non-Invasive Spinal Modulation for Cerebral Palsy

      Implanted Magnets for Prosthetic Control

      Implanted Magnets for Prosthetic Control

  • Categories
    • Exclusive
    • A-D
      • Anesthesiology
      • Art
      • Cardiac Surgery
      • Cardiology
      • Critical Care
      • Dentistry
      • Dermatology
      • Diagnostics
    • E-I
      • Emergency Medicine
      • ENT
      • Genetics
      • Geriatrics
      • GI
      • Informatics
    • M-N
      • Medicine
      • Military Medicine
      • Nanomedicine
      • Net News
      • Neurology
      • Neurosurgery
      • Nuclear Medicine
    • O-P
      • Ob/Gyn
      • Oncology
      • Ophthalmology
      • Orthopedic Surgery
      • Pathology
      • Pediatrics
      • Plastic Surgery
      • Psychiatry
      • Public Health
    • R-V
      • Radiation Oncology
      • Radiology
      • Rehab
      • Reproductive Medicine
      • Space Medicine
      • Sports Medicine
      • Surgery
      • Thoracic Surgery
      • Urology
      • Vascular Surgery
  • SUBSCRIBE
  • Submit PR
  • About
  • Log in
  • Submit PR
  • Follow
    • Facebook
    • Twitter
    • Linkedin
    • Youtube
    • Instagram
    • RSS

Listening to Cancer Mets

October 18th, 2006 Medgadget Editors Oncology

Optical Society of America is reporting about a highly sensitive method that researchers at the University of Missouri-Columbia are using to make melanoma cells emit noise, thus allowing oncologists to actually hear early signs of metastases. This novel optical technique has great sensitivity.
From the announcement:

The team’s method, called photoacoustic detection, combines laser techniques from optics and ultrasound techniques from acoustics, using a laser to make cells vibrate and then picking up the characteristic sound of melanoma cells. In a clinical test, doctors would take a patient’s blood sample and separate the red blood cells and the plasma. In a healthy person, the remaining cells would be white blood cells, but in a melanoma patient the sample may contain cancer cells. To find out, doctors would put the sample in saline solution and expose it to rapid-fire sequences of brief but intense blue-laser pulses, each lasting just five billionths of a second.
In lab tests, the Missouri-Columbia team was able to detect melanoma cells obtained from actual patients, showing that the method can spot as few as 10 cells in saline solution. The dark, microscopic granules of melanin contained in the cancer cells absorb the energy bursts from the blue-laser light, going through rapid cycles of expanding as they heat up and shrinking as they cool down. These sudden changes generate loud cracks — relative to the granules’ size — which propagate in the solution like tiny tsunamis.
The sound waves produced by melanin are high-frequency ultrasounds, meaning that they cannot be heard by the human ear, even if amplified. However, researchers can pick them up with special microphones and analyze them with a computer. Other human cells do not contain pigments with the same color as melanin, so the melanin signature is easy to tell apart from other noises, said John Viator, a biomedical engineer at Missouri-Columbia and a coauthor of the Optics Letters paper. And the presence of melanin granules in the blood is an unmistakable sign. “The only reason there could be melanin in the human blood is that there would be melanoma cells,” he said.

Link…

Medgadget Editors

Medical technologies transform the world! Join us and see the progress in real time. At Medgadget, we report the latest technology news, interview leaders in the field, and file dispatches from medical events around the world since 2004.

Sponsored
C-mo Medical Solutions extends seed investment round to €4.8 million to transform cough monitoring

C-mo Medical Solutions extends seed investment round to €4.8 million to transform cough monitoring

New Clarius Power Fan HD3 Delivers a First for Handheld Ultrasound: Continuous Scanning

New Clarius Power Fan HD3 Delivers a First for Handheld Ultrasound: Continuous Scanning

Fluidx Unveils New Embolic for Neurovascular Use

Fluidx Unveils New Embolic for Neurovascular Use

Annalise.ai and Nuance Communications (a Microsoft Company) Announce Key Partnership to Improve Patient Outcomes with Workflow-Integrated AI

Annalise.ai and Nuance Communications (a Microsoft Company) Announce Key Partnership to Improve Patient Outcomes with Workflow-Integrated AI

PT Genie Unveils New Brand Identity Reflecting Company’s Transformation and Focus on the Global Future of AI and Machine Learning in Digital Healthcare

interviews & reviews
Balance Boards to Stay Active in the Offfice: Interview with Joel Heath, CEO of FluidStance 

Balance Boards to Stay Active in the Offfice: Interview with Joel Heath, CEO of FluidStance 

Exciting Medtech at the Healthcareᐩ Expo Taiwan

Exciting Medtech at the Healthcareᐩ Expo Taiwan

Medgadget Visits Healthcareᐩ Expo Taiwan

Medgadget Visits Healthcareᐩ Expo Taiwan

Diabetes Management Tech for Type II patients: Interview with Jeffrey Brewer, CEO of Bigfoot Biomedical

Diabetes Management Tech for Type II patients: Interview with Jeffrey Brewer, CEO of Bigfoot Biomedical

Monitoring Congestive Heart Failure Through Speech: Interview with Tamir Tal, CEO of Cordio Medical

Monitoring Congestive Heart Failure Through Speech: Interview with Tamir Tal, CEO of Cordio Medical

In-Office Pediatric Ear Tube Procedures: Interview with Preceptis Medical's Greg Mielke

In-Office Pediatric Ear Tube Procedures: Interview with Preceptis Medical's Greg Mielke

Symani Microsurgical Robotic System: Interview with Mark Toland, CEO of Medical Microinstruments

Symani Microsurgical Robotic System: Interview with Mark Toland, CEO of Medical Microinstruments

  • Subscribe
  • Contact us
  • Submit
  • About
  • Back to top
Medgadget

Medical technologies transform the world! Join us and see the progress in real time. At Medgadget, we report the latest technology news, interview leaders in the field, and file dispatches from medical events around the world since 2004.

  • About
  • Editorial policies
  • Contact
  • Terms of Service
  • Privacy
  • Submit press release
  • Advertise
© Medgadget, Inc. All rights reserved. | The Medical Revolution Will Be Blogged.
Please support this website by adding us to your whitelist in your ad blocker. Ads are what helps us bring you premium content! Thank you!
Posting....
  • Facebook
  • Twitter
  • LinkedIn
  • Reddit
  • Email