Diagnostic Imaging Equipment Calibration Tracking with CMMS
By Bruno Talley on September 22, 2026
A drifted CT number, a slice-thickness reading a millimetre off, an SNR trend sliding for six weeks imaging equipment doesn't fail loudly; it drifts. And when the ACR annual physicist survey lands, the drift becomes a deficiency that can pull an accreditation. Diagnostic imaging equipment calibration tracking isn't a spreadsheet job — it's a modality-specific QC cadence per scanner, phantom test data captured at the console, baseline trending across months, and a WO that fires the moment a reading crosses tolerance. This guide walks the calibration workflow inside OxMaint AI-powered CMMS / Maintenance Management Software — one record per MRI, CT, PET/CT, ultrasound and mammography unit, with the phantom results, baselines and physicist survey attached — or book a radiology walkthrough.
Radiology · Imaging Calibration & QC · ACR-Ready Records
Track Every Phantom Test, Every Baseline, Every Drift — On One Record Per Scanner.
Imaging QC lives on paper QC logs, technologist spreadsheets and physicist PDFs — nowhere connected. OxMaint AI-powered CMMS holds the daily / weekly / monthly / annual QC cadence per modality, captures phantom results at the console, trends every reading against baseline, and fires a WO the moment a tolerance is crossed. Radiology and biomed work from the same record.
Modality QC Cadence — What OxMaint Schedules Per Scanner
Different modalities carry different QC rulebooks and different phantoms. OxMaint applies the cadence per scanner class and lets the medical physicist adjust for local accreditation programme requirements.
The 7 Tests OxMaint Records on Every MRI ACR Phantom Scan
The ACR MRI accreditation programme requires seven phantom tests each month. OxMaint stores the reading, the field-strength tolerance and the baseline delta on one record per scanner — the physicist survey opens against the same data.
A single in-tolerance reading can still be part of a clear downward drift. OxMaint plots every phantom reading against baseline so radiology sees the slope before it becomes a failed test.
OxMaint · MRI-01 · SNR Trend · Rolling 12 Months
210180150120
Baseline 195
Tolerance 150 (−23%)
198
196
197
192
188
182
174
168
161
156
149
145
JFMAMJJASOND
OxMaint auto-flagged Aug at −14% drift · WO to biomed opened Nov when tolerance crossed · coil suspected
Roles & Signoff — Who Owns What in OxMaint
Imaging QC is a shared programme — the technologist runs the phantom, the biomed engineer fixes the hardware, the medical physicist signs the survey, and the radiology admin owns the accreditation submission. OxMaint holds each role's tasks and signoff on the same asset record.
TECH
MRI / CT Technologist
Runs daily and weekly phantom scans, enters readings at the console, flags visible artefact. First line of QC.
BIOMED
Biomed / Clinical Engineer
Receives OxMaint WO when a reading crosses tolerance, works the corrective action, records service report.
PHYSICIST
Medical Physicist
Runs annual system evaluation, reviews monthly trends, signs the survey, sets baseline after any hardware change.
RAD ADMIN
Radiology Administrator
Owns ACR / MQSA accreditation submission and re-accreditation cycle. Pulls the OxMaint bundle for the package.
What OxMaint Gives a Radiology QC Team
Modality-Specific Cadence
Daily / weekly / monthly / annual QC WOs auto-generated per scanner class — MRI, CT, PET/CT, US, MG, DR.
Console-Side Data Entry
Phantom readings captured in seconds at the console — no double-entry into a QC binder later.
Baseline Trending
Every reading plotted against baseline; drift alerts fire before a reading fails so biomed can act early.
Tolerance-Crossed WO Trigger
Any out-of-tolerance reading opens a biomed WO with the phantom result, service history and prior baseline attached.
Physicist Survey Import
Annual medical physicist survey report and readings imported and linked to the scanner's QC timeline.
Accreditation Bundle Export
One-click bundle per scanner — 12-month QC log, physicist survey, service history — ACR / MQSA-ready.
FAQs
Q. Does OxMaint schedule the ACR-required QC frequencies out of the box?
Yes — daily, weekly, monthly, quarterly and annual cadences ship per modality (MRI, CT, PET/CT, US, MG, DR) with per-scanner override for local programme requirements. Start free and load your first scanner.
Q. How are baselines set and re-set after a service event?
Baselines are set from acceptance test data on install and can be re-baselined by the medical physicist after any hardware change — coil swap, tube replacement, board change. OxMaint keeps the old baseline in the timeline for reference. Walk through baseline re-set in a demo.
Q. Can the physicist survey be uploaded and linked to the scanner record?
Yes — the annual survey PDF, readings and any recommendations are attached to the scanner's QC timeline, and the anniversary date drives the next-survey WO. Try physicist survey import.
Q. Is the accreditation bundle export sufficient for ACR / MQSA submission?
The bundle includes the phantom log, baseline trend, physicist survey and service history per scanner. Radiology admin adds accreditation-programme-specific cover documents. See a sample bundle.
Every Scan. Every Baseline. Every Survey. One Record.
Move your imaging QC onto OxMaint — modality-specific cadence, console capture, live baseline trending, accreditation-ready export.
