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CT Scanner Detector Error Guide

By MedBazaar Technical Team · Troubleshooting Guide

مسئلہ / Problem

CT scanner detector errors, "Bad Channel" ya image artifacts jo detector failure indicate karte hain.

Detector Error Indicators

  • Ring artifacts in images (circular rings)
  • Specific angular artifacts
  • "Bad Detector" system message
  • Calibration consistently failing specific channels

    • تشخیص / Diagnosis Steps

  • Images mein artifacts pattern identify karein
  • Ring artifact = detector element issue
  • Calibration maps check karein — bad channels visible hote hain
  • System log check karein (engineer access required typically)

    • حل / Fix (Engineer Required)

  • Detector element map review
  • Software bad channel compensation (temporary fix)
  • Physical detector inspection
  • Detector module replacement (very expensive — PKR 50+ lakh possible)

    • User Level Actions

  • Systematic artifact documentation karein (patient name/ID, date, artifact description)
  • Radiologist se image quality assessment karwain
  • Engineering immediately notify karein

    • Financial Consideration

    Detector replacement CT scanner ka most expensive repair hai. Second opinion lein, manufacturer vs third party options compare karein. MedBazaar pe certified CT engineers available hain jo honest assessment de sakte hain.

    Difficulty: Advanced — Engineer Required

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