Optimized Camera-based Patient Positioning in CT

NCT ID: NCT05135208

Last Updated: 2022-09-01

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

3118 participants

Study Classification

OBSERVATIONAL

Study Start Date

2021-02-01

Study Completion Date

2022-05-24

Brief Summary

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

Detailed Description

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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.

Conditions

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Radiation Dosage

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

RETROSPECTIVE

Study Groups

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experimental group

patients positioned with 3D camera

No interventions assigned to this group

control group

patients positioned by experienced radiology assistants

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

Only patients with a clinical indication for a CT Scan

Exclusion Criteria

renal insufficiency, manifest hyperthyroidism and pregnancy
Minimum Eligible Age

18 Years

Maximum Eligible Age

100 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Dr. Panagiota Manava

OTHER

Sponsor Role lead

Responsible Party

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Dr. Panagiota Manava

Dr. med. Panagiota Manava, MD, Attending Radiologist, Principal Invesigator

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Michael M. Lell, Prof. Dr.

Role: STUDY_DIRECTOR

Department of Radiology and Nuclear Medicine, Klinikum Nuernberg, Paracelsus Medical University, Germany

Locations

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Institute of Radiology and Nuclear Medicine

Nuremberg, Bavaria, Germany

Site Status

Countries

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Germany

References

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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.

Reference Type BACKGROUND
PMID: 30306328 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 24951205 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 29762259 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 28133763 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 33454459 (View on PubMed)

Manava P, Galster M, Ammon J, Singer J, Lell MM, Rieger V. Optimized Camera-Based Patient Positioning in CT: Impact on Radiation Exposure. Invest Radiol. 2023 Feb 1;58(2):126-130. doi: 10.1097/RLI.0000000000000904. Epub 2022 Aug 2.

Reference Type DERIVED
PMID: 35926075 (View on PubMed)

Provided Documents

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Document Type: Study Protocol and Statistical Analysis Plan

View Document

Other Identifiers

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CT_2021

Identifier Type: -

Identifier Source: org_study_id

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