Optimizing CT pulmonary angiography with patient-adaptive triggering—a novel approach for a “one-stop-shop” evaluation of pulmonary and aortic vasculature

By
Gonçalo G. Almeida
Ismaiel Chikh-Bakri
Natalia Leopold
Jakob Heimer
Ralf Gutjahr
Oezlem Krzystek
Maria Paslak
Tilo Niemann
André Euler
November 19, 2025
0 min

European Radiology

Objective:

To evaluate the impact of a patient-adaptive trigger delay on objective and subjective image quality in CTPA compared to traditional fixed-delay protocols.

Key Findings:

Patient-adaptive triggering improved image quality metrics compared to fixed-delay protocols.
Objective measures showed enhanced CT attenuation and CNR in the patient-adaptive group.
Subjective assessments indicated better overall image quality in the patient-adaptive group.

Interpretation:

The patient-adaptive trigger delay algorithm enhances diagnostic image quality in CTPA, potentially leading to improved detection of pulmonary embolism.

Limitations:

Single-center study may limit generalizability.
Retrospective design may introduce selection bias.

Conclusion:

Implementing patient-adaptive triggering in CTPA can optimize image quality, supporting its use in clinical practice for better diagnosis of pulmonary embolism.

Optimizing CT pulmonary angiography with patient-adaptive triggering—a novel approach for a “one-stop-shop” evaluation of pulmonary and aortic vasculature

Objective:

Key Findings:

Interpretation:

Limitations:

Conclusion:

Original Source(s)

Optimizing CT pulmonary angiography with patient-adaptive triggering—a novel approach for a “one-stop-shop” evaluation of pulmonary and aortic vasculature

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