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Related Experiment Videos

Normal splenic volumes estimated using three-dimensional ultrasonography.

I De Odorico1, K A Spaulding, D H Pretorius

  • 1Department of Radiology, University of Louisville, Kentucky, USA.

Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine
|March 19, 1999
PubMed
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Three-dimensional (3D) ultrasonography offers a more accurate method for measuring spleen volume compared to traditional 2D techniques. This advanced imaging provides precise splenic volume assessment, crucial for clinical evaluations.

Area of Science:

  • Medical Imaging
  • Radiology
  • Ultrasound Technology

Background:

  • Accurate splenic volume measurement is important for various clinical conditions.
  • Traditional two-dimensional (2D) ultrasonography uses simplified formulas for splenic index calculation.
  • The irregular shape of the spleen poses challenges for precise 2D volumetric assessment.

Purpose of the Study:

  • To determine splenic volumes using three-dimensional (3D) ultrasonography.
  • To compare 3D splenic volume measurements with conventional 2D splenic indices.
  • To evaluate the accuracy and reliability of 3D ultrasonography for splenic volume determination.

Main Methods:

  • Fifty-two healthy volunteers underwent splenic volume measurements using both 2D and 3D ultrasonography.

Related Experiment Videos

  • 2D measurements utilized length, width, and thickness with the prolated ellipsoid formula.
  • 3D measurements involved a slice-by-slice planar technique, with in vitro validation on cadaveric spleens.

    • Main Results:

    • No significant interobserver or intraobserver variability was found for either 2D or 3D methods.
    • 3D sonographic splenic volume estimations were consistently smaller than 2D estimations.
    • In vitro 3D planar method measurements were accurate within 2% of water displacement volumes.

    Conclusions:

    • Three-dimensional ultrasonography provides accurate splenic volume measurements.
    • 3D ultrasonography is potentially superior to 2D techniques for irregularly shaped organs like the spleen.
    • 3D ultrasonography offers improved accuracy over traditional 2D methods for splenic volume assessment.