Segmental Pressure Measurements

in Vascular Diagnostics and Imaging

Applied

Type

Modification

Confidence

92%

Created

Apr 22, 2026

Evidence

1 source

Rationale

[citation-backfill] Refreshed the cited Rutherford line so the section wording matches the verified latest-edition support instead of only swapping the locator. The verified support snippet states 'A decrease in pressure of 20 mm Hg or more at any one level in comparison to the level above indicates significant disease.' The current line uses '>20 mmHg' (strictly greater than) and 'stenosis' as the disease descriptor. The verified source uses '20 mm Hg or more' (greater than or equal to) and the broader term 'significant disease' rather than 'stenosis'. The threshold qualifier can be safely corrected from '>20' to '≥20', and 'stenosis' can be broadened to 'disease' to match the verified source. The citation key should also be updated to the target. The non-Rutherford citation is preserved.

Evidence

Rutherford's Vascular Surgery and Endovascular Therapy. 10th ed.. 2022. Ch. 21, Vascular Laboratory: Arterial Physiologic Assessment, p. 341
10th ed.Latest verifiedCh. 21, Vascular Laboratory: Arterial Physiologic Assessment, p. 341
Textbook proof

A decrease in pressure of 20 mm Hg or more at any one level in comparison to the level above indicates significant disease.

Content Changes

* Performed at thigh, calf, ankle.
* A drop >20≥20 mmHg suggestsat significantany stenosislevel proximalcompared to site.the level above indicates significant disease at that segment. [@svs2024-gornik] [@rutherford2018-rutherford][@rutherford-10e-2022-ch21-vascular-laboratory-arterial-phy-p341-90048030]
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