Table 1.
Characteristics of the included studies and patients
| First author, year of publication | Country | Study design | Age (years) | Male (%) | CT type | CT device/Slice thickness | Contrast material |
|---|---|---|---|---|---|---|---|
| Augustin, 2019 | France | Prospective cohort | NS | NS | Thoracoabdominal | A 64-row MDCT scanner/0.625 mm | NS (IV) |
| Bodanapally, 2009 | United States | Retrospective cohort | 29.6, (13–86) Mean, (Range) | 86 | Thoracic, Thoracoabdominopelvic, Abdominopelvic | MX 8000 or Brilliance 16 Power; Philips Medical Systems, Cleveland, OH (a 4- or 16-slice CT system)/3–5 mm | 2% sodium diatrizoate (Hypaque sodium; Nycomed, Princeton, NJ); 600 ml IV and 1–1.5 L enema |
| Dreizin, 2013 | United States | Case–control | 32.6, (16–85) Mean, (Range) | 92.6 | Thoracoabdominal | Somatom; Siemens, Malvern, Pa (64-section MDCT)/1.5 mm | 103 mL of IV ioversol, Optiray; Mallinckrodt, Hazelwood, Mo |
| Daza-Cajas, 2021 | Colombia | Prospective cohort | 23.2, (18–37) Mean, (Range) | 90.75 | Thoracic, Abdominal, Thoracoabdominal | GE LightSpeed; GE Healthcare, Milwaukee, WI, USA; 64 rows of detectors/ < 3 mm | NS (Non-contrast, IV or oral) |
| Leung, 2015 | Canada | Case–control | NS | NS | Abdominal | a 64-slice MDCT scanner/3 mm | 125 mL IV Omnipaque 300, GE Healthcare |
| Melo, 2011 | Brazil | Prospective cohort | 24.3, (6.8), (14–44) Mean, (SD), (Range) | 96.77 | Thoracoabdominal | GE LightSpeed; GE Healthcare, Milwaukee, WI, USA; 8 rows of detectors/1.25 mm | 100 mL IV iobitridol, Henetix 300, Guerbet, Rio de Janeiro, Brazil; 400 mL oral iodinated contrast solution; 200 mL of the same solution rectally |
| Stein, 2007 | United States | Retrospective cohort | 29.6, (11.4), (13–86) Mean, (SD), (Range) | 87.7 | Thoracic, Abdominal, Thoracoabdominal | MX 8000 or Brilliance 16 Power; Philips Medical Systems, Cleveland, OH (a 4- or 16-slice MDCT scanner)/3 mm | Oral, rectal and 150 mL of I2 mg/mL of IV contrast material |
| Uhlich, 2018 | United States | Retrospective cohort | NS | NS | NS | Koninklijke Philips NV, Amsterdam; a 256-slice CT scanner, and Philips Brilliance Power; a 64-slice machine/NS | NS |
| Yucel, 2015 | Turkey | Prospective cohort | 30, (15–61) Mean, (Range) | 91 | Thoracoabdominal | Multislice CT scanner | NS |
GE General Electric, IV Intravenous, MDCT Multidetector computed tomography, NS Not specified