1 00:00:05,589 --> 00:00:13,849 This video will demonstrate four projections of the wrist, PA, PA oblique, lateral, and ulnar deviation. 2 00:00:14,429 --> 00:00:17,429 The patient will be seated at a 90 degree angle to the table. 3 00:00:18,190 --> 00:00:20,870 The elbow will be flexed 90 degrees. 4 00:00:22,250 --> 00:00:29,149 First projection will be the PA projection where we center the wrist to the image receptor. 5 00:00:31,190 --> 00:00:34,350 Central ray is perpendicular to the mid-carpal. 6 00:00:34,350 --> 00:00:44,969 We're going to have the patient flex the fingers to reduce OID, collimate to include proximal 7 00:00:44,969 --> 00:00:53,369 half of metacarpals and distal one inch of the ulna and radius. 8 00:00:53,369 --> 00:01:02,950 Left wrist, we'll place our left marker lateral to the extremity. 9 00:01:02,950 --> 00:01:11,769 The next projection will be a PA oblique with lateral rotation and it's a 45 degree rotation. 10 00:01:11,769 --> 00:01:22,560 The wrist is still centered at the mid-carpal, central ray perpendicular entering mid-carpal. 11 00:01:22,560 --> 00:01:27,159 Collimation again will include proximal half of metacarpals and distal one inch of the 12 00:01:27,159 --> 00:01:39,670 ulna and radius, left marker on the lateral aspect of the wrist. Next projection is going 13 00:01:39,670 --> 00:01:48,909 to be a lateral projection of the wrist and it will be a lateral medial projection. Make 14 00:01:48,909 --> 00:01:59,209 sure that the ulna and radius are superimposed. The thumb should be adducted. Central ray 15 00:01:59,209 --> 00:02:09,319 is perpendicular to mid-carpal. Marker is placed anterior to the wrist. Again the 16 00:02:09,319 --> 00:02:16,580 collimation includes proximal, half of the metacarpals, distal one inch of the 17 00:02:16,580 --> 00:02:26,349 ulnar radius. The next projection, move the patient around, is going to be ulnar 18 00:02:26,349 --> 00:02:39,750 deviation. So we'll place the palmar surface down. Then we're going to create as much angle 19 00:02:39,750 --> 00:02:48,490 between the metacarpals and the ulna and radius as possible. Central ray is going to be perpendicular 20 00:02:48,490 --> 00:02:55,449 to the scaphoid or navicular because we're trying to demonstrate the scaphoid without 21 00:02:55,449 --> 00:03:06,439 self-superimposition. If the patient cannot deviate appropriately, we can angle the central 22 00:03:06,439 --> 00:03:23,500 ray 10 to 15 degrees, proximally or distally, still entering the scaphoid or navicular. 23 00:03:27,520 --> 00:03:29,960 Place your left marker on the image receptor.