Optimized Camera-based Patient Positioning in CT

Radiation Dosage Clinical Trial

Official title:

Optimized Camera-based Patient Positioning in CT: Impact on Radiation Exposure.

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT05135208
• Other study ID #: CT_2021
• Status: Completed
• Start date: February 1, 2021
• Est. completion date: May 24, 2022

Study information

• Verified date: August 2022
• Source: Paracelsus Medical University
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

To evaluate the effect on radiation dose using intelligent camera positioning in comparison to manual positioning by the radiology assistant.

Description:

The positioning of the patient at the beginning of every CT examination has an major influence on the image quality and especially on the respective effective patient dose in the CT scan. If the patient position is closer to the X-ray tube, the patient dose increases significantly and if the vertical patient position is chosen too far away from the X-ray tube, the applied dose decreases, but also the image quality.

In a retrospective observational study, patients were examined on the CT scanner Somatom X.Cite and divided into two groups, one group was with intelligent camera positioning and the other with manual positioning.

The patients received their CT scan at the Institute Radiology and Nuclear Medicine at the Nuremberg North Hospital strictly according to the clinical indication and without influence of the study.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 3118
• Est. completion date: May 24, 2022
• Est. primary completion date: May 24, 2022
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years to 100 Years

Eligibility

Inclusion Criteria:

Only patients with a clinical indication for a CT Scan

Exclusion Criteria:

renal insufficiency, manifest hyperthyroidism and pregnancy

Related Conditions & MeSH terms

• Radiation Dosage

Locations

Country	Name	City	State
Germany	Institute of Radiology and Nuclear Medicine	Nuremberg	Bavaria

Sponsors (1)

Lead Sponsor	Collaborator
Dr. Panagiota Manava

Country where clinical trial is conducted

Germany, 

References & Publications (5)

Booij R, Budde RPJ, Dijkshoorn ML, van Straten M. Accuracy of automated patient positioning in CT using a 3D camera for body contour detection. Eur Radiol. 2019 Apr;29(4):2079-2088. doi: 10.1007/s00330-018-5745-z. Epub 2018 Oct 10. — View Citation

Dane B, O'Donnell T, Liu S, Vega E, Mohammed S, Singh V, Kapoor A, Megibow A. Radiation dose reduction, improved isocenter accuracy and CT scan time savings with automatic patient positioning by a 3D camera. Eur J Radiol. 2021 Mar;136:109537. doi: 10.1016/j.ejrad.2021.109537. Epub 2021 Jan 12. — View Citation

Kaasalainen T, Palmu K, Reijonen V, Kortesniemi M. Effect of patient centering on patient dose and image noise in chest CT. AJR Am J Roentgenol. 2014 Jul;203(1):123-30. doi: 10.2214/AJR.13.12028. — View Citation

Marsh RM, Silosky MS. The effects of patient positioning when interpreting CT dose metrics: A phantom study. Med Phys. 2017 Apr;44(4):1514-1524. doi: 10.1002/mp.12137. Epub 2017 Mar 17. — View Citation

Saltybaeva N, Schmidt B, Wimmer A, Flohr T, Alkadhi H. Precise and Automatic Patient Positioning in Computed Tomography: Avatar Modeling of the Patient Surface Using a 3-Dimensional Camera. Invest Radiol. 2018 Nov;53(11):641-646. doi: 10.1097/RLI.0000000000000482. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Effective dose	the absorbed dose to different organs of the body	10 months