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Highlight the role of USG diagnosis and management of head and nerve lesions?

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Ultrasound is defined as sound a frequency above the upper length of normal hearing (ULKHZ)

Ultrasound image are formed from the reflected sound waves(2.5-30 MHz ). Sound waves are generated in the bent by B-node the transduce (probe)Those sound waves are effected by interfaces of tissue c different physical properties and reflected electrons is used to generate the contrast of the different tissue to form a image.

USG generate realtime 2D image at a rate of 15-60 frames per second of both anatomy and a motion.

Heart and neck the probes of 7.5 MHz or generate are used.

USG produce diagnostic information  a high degree of accuracy.

  • Ultra sound allows a gold standard ability to determine whether a focal lesion is cystic solid even better than CT and MU.
  • Ultrasound has no ionizing radiation, heater readily addible and relatively cheap.
  • It plays an important role in guiding intervention procedure such as FNAC, biopsies, catheters accurately and in real time.
  • It is very efficient in assessing
    • lymphnode
    • Thyroid glance
    • Parathyroid: 1º hyperparathyroroidism
    • Salivary glance: Tumour shows if > 2 mm.
    • Cystic lesions : Thyroglossal Cyst, Branchial cyst
    • Soft tissue neoplasm: Lipoma PGS
    • Vascular malformation : haemangiomas
    • Neurogenic malformation”: Neurofibroma
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