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Tactile imaging of an imbedded palpable structure for breast cancer screening

ACS Applied Materials and Interfaces, ISSN: 1944-8252, Vol: 6, Issue: 18, Page: 16368-16374
2014
  • 16
    Citations
  • 0
    Usage
  • 36
    Captures
  • 34
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    16
  • Captures
    36
  • Mentions
    34
    • News Mentions
      33
      • 33
    • Blog Mentions
      1
      • Blog
        1

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Article Description

Apart from texture, the human finger can sense palpation. The detection of an imbedded structure is a fine balance between the relative stiffness of the matrix, the object, and the device. If the device is too soft, its high responsiveness will limit the depth to which the imbedded structure can be detected. The sensation of palpation is an effective procedure for a physician to examine irregularities. In a clinical breast examination (CBE), by pressing over 1 cm area, at a contact pressure in the 70-90 kPa range, the physician feels cancerous lumps that are 8- to 18-fold stiffer than surrounding tissue. Early detection of a lump in the 5-10 mm range leads to an excellent prognosis. We describe a thin-film tactile device that emulates human touch to quantify CBE by imaging the size and shape of 5-10 mm objects at 20 mm depth in a breast model using80 kPa pressure. The linear response of the device allows quantification where the greyscale corresponds to the relative local stiffness. The (background) signal from <2.5-fold stiffer objects at a size below 2 mm is minimal.

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