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skull · Lateral

Skull Lateral

Patient semi-prone or erect, side of interest against IR.

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AI Patient · KV Sir

How to perform this view

  1. 01

    Seat patient erect, head turned to true lateral with affected side to IR.

  2. 02

    MSP parallel, interpupillary line perpendicular to IR.

  3. 03

    IOML parallel to top of IR.

  4. 04

    Centre CR 2 cm superior to EAM.

  5. 05

    Expose.

Anatomical & patient position

Patient: Patient semi-prone or erect, side of interest against IR.

Part: MSP parallel to IR; interpupillary line perpendicular; IOML parallel to transverse axis.

Central ray & centring point

Perpendicular to IR, 5 cm superior to EAM.

Exposure factors

kVp

70-80 kVp

mAs

10-20 mAs

SID

100 cm

IR size

24 x 30 cm landscape

Grid

Yes

Respiration

Suspended

Clinical indications

  • Skull fractures
  • Sella turcica evaluation
  • Foreign body localisation

Contraindications & precautions

  • Pregnancy (relative) - confirm LMP / 10-day rule, justify exposure and shield where possible
  • Suspected unstable spinal injury - do NOT move neck/spine; use cross-table lateral first and keep collar (use horizontal beam lateral)

Structures shown & evaluation criteria

  • Superimposed orbital roofs, mandibular rami and EAMs
  • Sella turcica in profile
  • Entire cranium

Radiology By KV Sir — radiographic positioning for students & technologists.

Educational reference only. Always follow your department protocol & ALARA.