Inclusion criteria

Exclusion criteria

Rationale

All publications to date

n/a

To include all relevant studies

Full-text articles in English language

Articles not written in English language

Difficulty in comprehension

Prospective, retrospective studies and clinical trials

Case reports, reviews, meta-analyses

To include studies with original results only

Patients suspected of PE undergoing CTPA

Patients with other than PE pulmonary conditions

To assess image quality of PA

Studies comparing image quality of a CTPA protocol with reduced ICM dose to a standard CTPA protocol, employing either qualitative or quantitative image evaluation, or both

Non comparative studies, phantom studies, studies not assessing image quality for different ICM doses

This review aims to summarize the findings of comparative studies on CTPA image quality

Studies comparing image quality between CTPA protocols with various reduced ICM doses, employing either qualitative or quantitative image evaluation, or both

Non comparative studies, phantom studies, studies not assessing image quality for different ICM doses

This review aims to summarize the findings of comparative studies on CTPA image quality