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This is a Quantitative Study study.

September 17, 2025Open Access

Reassessing D-Dimer Cut-Offs for Pulmonary Embolism: A Path Toward Safer and More Cost-Effective Diagnosis

Key Points

Lowering the D-dimer cut-off may enhance diagnostic accuracy, reducing excessive imaging procedures related to pulmonary embolism.
Modifying the standard cut-off from 0.5 mg/mL could improve diagnostic specificity while retaining high sensitivity rates for pulmonary embolism.
Utilizing the Wells and Geneva scores alongside adjusted D-dimer thresholds may streamline pulmonary embolism assessments.
Efforts to reassess cut-offs aim to foster cost-effective diagnosis methods for this life-threatening condition.

Abstract

Pulmonary embolism (PE) is a life-threatening condition requiring early and accurate diagnosis. The Wells and Geneva scores, along with D-dimer testing, are key tools in assessment. However, the standard D-dimer cut-off of 0.5 mg/mL, while highly sensitive, has low specificity, leading to excessive imaging. This study examines whether modifying the D-dimer threshold can improve diagnostic efficiency and reduce unnecessary testing.

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