NHS DVT Transparency Report · 2024/25
Freedom of Information Data

The NHS DVT
Waiting Time Crisis

Data obtained via Freedom of Information requests reveals how long patients wait for DVT diagnosis across NHS Trusts. Every undiagnosed DVT risks pulmonary embolism — a potentially fatal complication.

NHS — Learn about DVT ThinkSono — AI-Assisted DVT Scans

Note: Some discrepancies exist due to inconsistent data provided by NHS Trusts in response to FOI requests. We report the data as provided by each NHS Trust.

NHS Trust data incorrect or incomplete? Data incorrect or incomplete? Contact us with the subject line FOI Correction and we'll update the record.

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Data overview

Where are patients waiting the longest?

85 of 162 trusts provided waiting time band breakdowns, covering 250,485 of 307,678 total scans.

Patient wait time distribution
Within 4 hours90,581 (36.2%)
4–24 hours61,252 (24.5%)
24–48 hours35,855 (14.3%)
Over 48 hours62,435 (24.9%)
15 longest average waits by region
NHS Trust Waiting Times
FOI responses only · January 2025
Sort by
Key
Within 4h Meeting best-practice target
4–24h Delayed — patient at risk
Over 24h Critical delay
No data Trust did not provide data
NICE Guideline NG158 — DVT Diagnosis & Initial Management
ThinkSono Guidance

Reduce DVT wait times
to under 4 hours

ThinkSono Guidance enables any healthcare professional — not just radiologists — to perform a DVT ultrasound scan at the point of care, guided by AI in real time.

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ThinkSono reduces DVT waits to under 4 hours
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