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Related Concept Videos

External Female Genitals01:15

External Female Genitals

The vulva encompasses the external structures of the female reproductive system. At the forefront is the monpubis, a cushion of fatty tissue atop the pubic bone. Once puberty sets in, this area typically grows hair. Extending from just behind the mons pubis are the labia majora (labia = 'lips'; majora = 'larger'), which are larger skin fs olds coated with hair. Nestled within are the labia minora (labia = 'lips'; minora = 'smaller'), which are thinner, more pigmented, and hairless. While the...

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A Universal Multimodal Female Pelvic Phantom With Brachytherapy Applications.

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A low-cost, multimodal female pelvic phantom was developed for gynecologic brachytherapy training and research. This validated phantom accurately mimics pelvic anatomy and imaging properties, supporting realistic applicator placement and image segmentation.

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Area of Science:

  • Medical Imaging
  • Radiotherapy Physics
  • Biomedical Engineering

Background:

  • Anthropomorphic phantoms are crucial for gynecologic brachytherapy training and workflow validation.
  • Limited access to commercial models necessitates the development of low-cost alternatives.

Purpose of the Study:

  • To design and validate a low-cost, multimodal female pelvic phantom for gynecologic brachytherapy.
  • To replicate pelvic anatomy and tissue properties relevant to brachytherapy.

Main Methods:

  • Constructed a custom phantom using agar tissue-mimicking materials and 3D-printed molds.
  • Ensured compatibility with CT, MRI, and various ultrasound modalities.
  • Measured imaging properties (SoS, HU, ED) and assessed segmentation variability.

Main Results:

  • Phantom provided clear visualization across all imaging modalities with structural integrity.
  • Measured imaging properties closely matched clinical reference values.
  • MRI yielded the most consistent segmentations; 3D transrectal US showed greater variability.

Conclusions:

  • The developed phantom effectively supports realistic brachytherapy applicator placement and multimodal imaging.
  • It is suitable for image segmentation tasks and has potential for dose planning studies.
  • Low cost (~$150 CAD) enhances accessibility for training and research.