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🦷Dental EquipmentRVG Sensor

RVG Sensor Image Quality Issues

By MedBazaar Technical Team · Troubleshooting Guide

مسئلہ / Problem

RVG images dark, light, noisy ya artifacts show kar rahi hain.

ممکنہ وجوہات / Possible Causes

  • Exposure settings incorrect
  • Sensor positioning error
  • Sensor surface damage
  • Software calibration needed
  • X-ray unit output issue

    • تشخیص / Diagnosis Steps

  • Image consistently over/under exposed hai ya variable
  • Artifacts location specific hai (sensor damage) ya random
  • Exposure settings (kV, mA, time) check karein
  • Sensor surface scratch ya damage check karein

    • حل / Fix

    Exposure Settings:

  • Adult anterior: typically 60-65 kV, 7 mA, 0.1-0.2s
  • Adult posterior: 65-70 kV, 7 mA, 0.2-0.3s
  • Manufacturer recommended settings use karein

    • Sensor Calibration:

  • Software mein calibration run karein (flat field calibration)
  • Dark field calibration: covered sensor, exposure lein
  • Bright field: uncovered sensor, exposure lein

    • Sensor Positioning:

  • Sensor holder properly use karein — freehand nahi
  • Parallel technique ya bisecting angle correctly apply karein

    • Sensor Protection:

  • Disposable sleeve every patient ke liye use karein
  • Sensor drop se bachain — internal damage hota hai
  • Surface scratch: replacement needed

    • Estimated Fix Time: 15–30 minutes

    Difficulty: Intermediate

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