Hypertrophic pyloric stenosis (ultrasound measurements mnemonic)
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Hypertrophic pyloric stenosis can be characterised in ultrasound studies by the measurements of the hypertrophic muscle. Although the criteria can vary from publication to publication, an easy way to keep in mind those values is remembering the first digits of the number "pi", also representrepresented by the Greek letter "π":
π= 3.1415
- pyloric muscle thickness, i.e. diameter of a single muscular wall on a transverse image
:>3 mm (most accurate 1) - pyloric transverse diameter
: ≥ 14≥14 mm - length, i.e. longitudinal measurement
:>15 mm
-<p><a href="/articles/pyloric-stenosis">Hypertrophic pyloric stenosis</a> can be characterised in ultrasound studies by the measurements of the hypertrophic muscle. Although the criteria can vary from publication to publication, an easy way to keep in mind those values is remembering the first digits of the number "pi", also represent by the Greek letter "π":</p><p><strong>π= 3.1415</strong></p><ul>-<li>pyloric muscle thickness, i.e. diameter of a single muscular wall on a transverse image: >3 mm (most accurate <sup>1</sup>)</li>-<li>pyloric transverse diameter: ≥ 14 mm</li>-<li>length, i.e. longitudinal measurement: >15 mm</li>- +<p><a href="/articles/pyloric-stenosis">Hypertrophic pyloric stenosis</a> can be characterised in ultrasound studies by the measurements of the hypertrophic muscle. Although the criteria can vary from publication to publication, an easy way to keep in mind those values is remembering the first digits of the number "pi", also represented by the Greek letter "π":</p><p><strong>π= 3.1415</strong></p><ul>
- +<li>pyloric muscle thickness, i.e. diameter of a single muscular wall on a transverse image >3 mm (most accurate <sup>1</sup>)</li>
- +<li>pyloric transverse diameter ≥14 mm</li>
- +<li>length, i.e. longitudinal measurement >15 mm</li>
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