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Modalities with Low Volume or Emergency Use (Revised 8-1-24)

Revision History


In low volume or emergency situations, MRI, Nuclear Medicine, PET and Ultrasound facilities may use units and may perform imaging exams that are not accredited in a specific module without jeopardizing their accreditation status. 


Low volume or Emergency use does not apply to any CT exam/module/patient type (adult or pediatric) or Breast Imaging (Mammography, Breast Ultrasound or Stereotactic Breast Biopsy) programs


MRI, Nuclear Medicine and PET are unit-based accreditations meaning every unit used for diagnostic imaging must be accredited unless the criteria in Table 1 are met. 


Ultrasound is a facility-based accreditation meaning all modules performed at the facility must be accredited unless the criteria listed in Table 2 is met. 


Timeframe and examination limits for low volume or emergency use are provided in the tables below. Both the monthly and yearly criteria must be met to qualify. Facilities must notify the ACR and submit testing if the volume of examinations exceeds these limits.


Table 1

Timeframe

Acceptable Number of ‘Low Volume or Emergency Use’ Examinations/Isotopes

Performed Outside a Unit’s Accreditation Status

MRI exams, including Breast MR

Nuclear Medicine/PET exams

Nuclear Medicine Isotopes (In-111, Ga-67, and TI-201)

30 days

Fewer than 10

Fewer than 5

Fewer than 5

12 months

Fewer than 50

Fewer than 25

Fewer than 25


Table 2

Acceptable Number and Timeframe of ‘Low Volume or Emergency Use’ Examinations Performed Outside an Ultrasound Facility's Accreditation Status
30 days

Fewer than 5

12 months

Fewer than 25


Revision History for this Article

Date

Section

Description of Revision(s)

12-12-19

All

Article created; FAQs incorporated; No criteria changes

10-21-2020


Grammatical edit

3-3-2022

Table

Added column for Isotopes

8-1-2024


Clarified article for low volume and emergency use of the various modalities



Previous: Mobile Unit Multi-Site PolicyNext: Changes in Facility/Personnel/Modality

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