A CT chest study is negative for pulmonary embolism but clinical suspicion remains. What should the report state?

A CT chest study is negative for pulmonary embolism but clinical suspicion remains. What should the report state?

• A. State no acute pulmonary embolism detected; note any limitations (motion, subsegmental findings) and suggest clinical correlation or alternative imaging if warranted.
• B. State no PE and provide no further recommendations.
• C. Recommend immediate anticoagulation based on clinical suspicion.
• D. Suggest repeating the CT with the same protocol without explanation.

Answer: (A)

When a CT angiography study for suspected pulmonary embolism comes back without acute PE, but clinical suspicion remains, the report should clearly state that no acute pulmonary embolism is detected and, crucially, comment on any factors that could limit interpretation. Documenting limitations such as motion artifacts, suboptimal contrast enhancement or timing, or limited visualization of distal vessels helps clinicians understand the confidence of the negative result and whether small or subsegmental emboli could still be missed. The report should also guide next steps by recommending clinical correlation and consideration of alternative imaging or additional testing if warranted. This might include different imaging modalities (for example, a V/Q scan if CT limitations exist or contraindications apply), venous ultrasonography for DVT assessment, or follow-up imaging with an optimized protocol if there is ongoing high suspicion. Immediate anticoagulation based solely on clinical suspicion, without imaging confirmation, is not the appropriate radiology-driven conclusion.

When a CT angiography study for suspected pulmonary embolism comes back without acute PE, but clinical suspicion remains, the report should clearly state that no acute pulmonary embolism is detected and, crucially, comment on any factors that could limit interpretation. Documenting limitations such as motion artifacts, suboptimal contrast enhancement or timing, or limited visualization of distal vessels helps clinicians understand the confidence of the negative result and whether small or subsegmental emboli could still be missed.

The report should also guide next steps by recommending clinical correlation and consideration of alternative imaging or additional testing if warranted. This might include different imaging modalities (for example, a V/Q scan if CT limitations exist or contraindications apply), venous ultrasonography for DVT assessment, or follow-up imaging with an optimized protocol if there is ongoing high suspicion. Immediate anticoagulation based solely on clinical suspicion, without imaging confirmation, is not the appropriate radiology-driven conclusion.