Technologist Quality Control Procedures

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Everett Armstrong
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1 Technologist Quality Control Procedures The specific procedures for the Technologist Quality Control Program are those specified in the most current ACR MRI QC Manual.

2 WEEKLY MRI EQUIPMENT QUALITY CONTROL FOR LARGE PHANTOM MRI Facility Name: MRI Scanner Identifier: Date Setup & Table Position Console Center of Frequency (Hz) TX Gain or Attenuation (db) Geometric Measurements Sag Loc H/F Action limits: ± 5 mm Yes/No 148 ± 2 mm 190 ± 2 mm 190 ± 2mm 1.0 mm 1.0 mm Yes/No A/P Axial Slice 5 R/L High-Contrast Spatial Resolution Slice 1 Upper Left Lower Right Low-Contrast Detectability Slice # # of Spokes Artifact Evaluation Any present? Tested By Notes Reviewed by: Qualified Medical Physicist/MRI Scientist Date of Review: Provided courtesy of Radiation Services, Inc.

3 WEEKLY MRI EQUIPMENT QUALITY CONTROL FOR LARGE PHANTOM MRI Facility Name: MRI Scanner Identifier: Date Setup & Table Position Console Center of Frequency (Hz) TX Gain or Attenuation (db) Geometric Measurements Sag Loc H/F Action limits: ± 5 mm Yes/No 148 ± 2 mm 190 ± 2 mm 190 ± 2mm 1.0 mm 1.0 mm Yes/No A/P Axial Slice 5 R/L High-Contrast Spatial Resolution Slice 1 Upper Left Lower Right Low-Contrast Detectability Slice # # of Spokes Artifact Evaluation Any present? Tested By Notes Reviewed by: Qualified Medical Physicist/MRI Scientist Date of Review: Provided courtesy of Radiation Services, Inc.

4 WEEKLY MRI EQUIPMENT QUALITY CONTROL FOR LARGE PHANTOM MRI Facility Name: MRI Scanner Identifier: Date Setup & Table Position Console Center of Frequency (Hz) TX Gain or Attenuation (db) Geometric Measurements Sag Loc H/F Action limits: ± 5 mm Yes/No 148 ± 2 mm 190 ± 2 mm 190 ± 2mm 1.0 mm 1.0 mm Yes/No A/P Axial Slice 5 R/L High-Contrast Spatial Resolution Slice 1 Upper Left Lower Right Low-Contrast Detectability Slice # # of Spokes Artifact Evaluation Any present? Tested By Notes Reviewed by: Qualified Medical Physicist/MRI Scientist Date of Review: Provided courtesy of Radiation Services, Inc.

5 LASER PRINTER QC STARTUP WORKSHEET Day 0% patch 10% patch 40% patch 90% patch Start Date: Day 1 Day 2 Day 3 Day 4 Day 5 Average For five consecutive working days and using the SMPTE in the upper left corner of the page, measure the optical density each of the specified patches (0%, 10%, 40% & 90%) of the six-onone printout of SMPTE Pattern as described on pages 53 through 57 of the 2004 ACR MRI Quality Control Manual. LASER PRINTER QC STARTUP WORKSHEET Day 0% patch 10% patch 40% patch 90% patch Start Date: Day 1 Day 2 Day 3 Day 4 Day 5 Average For five consecutive working days and using the SMPTE in the upper left corner of the page, measure the optical density each of the specified patches (0%, 10%, 40% & 90%) of the six-onone printout of SMPTE Pattern as described on pages 53 through 57 of the 2004 ACR MRI Quality Control Manual. Provided by: Radiation Services, Inc.

6 LASER FILM PRINTER CONTROL CHART PERFORMED WEEKLY Laser Film Printer: Film: Calendar Year: Month: Date: Initials: 0% 10% 40% Limit % Limit REMARKS Date Action Date Action This Laser Film Printer Control Chart is based upon information available on the ACR web site. Provided by: Radiation Services, Inc.

7 LASER FILM PRINTER CONTROL CHART PERFORMED WEEKLY Laser Film Printer: Film: Calendar Year: Month: Date: Initials: 0% 10% 40% Limit % Limit REMARKS Date Action Date Action This Laser Film Printer Control Chart is based upon information available on the ACR web site. Provided by: Radiation Services, Inc.

8 MRI Accreditation Program Visual Checklist MRI Facility Name: Date: MRI Scanner Identifier: Patient Transport and Gantry Table position and other displays Alignment lights Horizontal smoothness of motion and stability Vertical motion smoothness and stability Filming Viewing Laser camera Light boxes RF door contacts RF window-screen integrity Operator console RF Integrity switches/lights/meters and Control Room Patient monitor (if present) Patient intercom Room temperature/room humidity Emergency cart Facility Safety Safety warning signage Door indicator switch (if installed) Cryogen level indicator Pass = Fail =F Does Not Apply = NA Technologist Initials: Reviewed by: Qualified Medical Physicist/MRI Scientist Date of Review: Provided courtesy of Radiation Services, Inc.

9 MRI Accreditation Program Visual Checklist MRI Facility Name: Date: MRI Scanner Identifier: Patient Transport and Gantry Table position and other displays Alignment lights Horizontal smoothness of motion and stability Vertical motion smoothness and stability Filming Viewing Laser camera Light boxes RF door contacts RF window-screen integrity Operator console RF Integrity switches/lights/meters and Control Room Patient monitor (if present) Patient intercom Room temperature/room humidity Emergency cart Facility Safety Safety warning signage Door indicator switch (if installed) Cryogen level indicator Pass = Fail =F Does Not Apply = NA Technologist Initials: Reviewed by: Qualified Medical Physicist/MRI Scientist Date of Review: Provided courtesy of Radiation Services, Inc.

10 COMMENTS/CORRECTIVE ACTION Date of Action Action Taken Initials

Scope: All CT staff technologist

Scope: All CT staff technologist APPROVED BY: Radiology Technical Director Page 1 of 6 Purpose: The QC program assesses relative changes in system performance as determined by the technologist, service engineer, qualified medical physicist,