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RADD 2612 Lab Table & Notes - Name 1 Measure/Draw...

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Whitney’s radiology II lab notes 1 Name Measure/Draw Normal Range Indicates Sella Turcica A-P and S-I in the widest and deepest place of the  sella turcica A-P = 5-16 avg. 11 S-I = 4-12 avg. 8 Enlargement of the pituitary or a space  occupying lesion Atlantodental Interval (ADI) Posterior aspect of the anterior tubercle and the  anterior portion of the dens Adult: 1-3mm Child: 1-5mm Instability in the atlas axis joint; adult:  rheumatoid arthritis; child: chronic  bacterial infection George’s Line Posterior aspect of the vertebral bodies  Check the cervical curve Posterior cervical Line Lines drawn at the most convex portion of the  spinolaminar junction Observe the cervical curve Sagittal dimensions of the spinal  canal Posterior aspect of the vertebral body to the convex  portion of the spinolaminar junction line Space occupying lesion Prevertebral soft Tissue Posterior aspect of the airway to the anterior aspect of  the vertebral bodies C1-C3: retropharyngeal (C2 not >7mm) C4-C5: retrolaryngeal  C6-C7: retrotracheal (C6 not >22mm) Space occupying lesion Basilar angle Frontal/nasal junction to the center of the sella  turcica; then from the center of the sella turcica to the  anterior aspect of the foramen magnum 123-152 degrees Over 152 degrees indicates platybasia McGregor’s line Superior posterior aspect of the hard palate to the  inferior most aspect of the occiput; measure how much  of the dens is above the line Males: not >8mm Females: not >10mm Greater then 8 or 10 indicates platybasia Chamberlain’s Line Posterior aspect of the hard palate to the posterior 
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