Wrist Positioning
Structures seen for PA Axial Projection for Scaphoid
Scaphoid best demonstrated, no rotation
Structures seen in PA Ulnar Deviation of Wrist
Scaphoid best demonstrated, no rotation
structures seen for Carpal Canal (Gaynor-Hart Method)
carpal canal, tubercle of trapezium, identifies fractures of hamate, pisiform, and trapezium
PA Lateral (external) oblique wrist position
from pronated, rotate wrist/hand 45 degrees laterally, cr enters at mid carpal area distal to radius, collimate 2 1/2 inches
Carpal Canal (Gaynor-Hart Method) Positon
hyperextended wrist, Center IR at wrist, CR angles 25-30 degrees, CR enters 1 inch distal to base of third metacarpal, collimate to include 1 inch on all three sides
Structures seen in AP medial Oblique wrist
pisiform best demonstrated, demonstrates carpals on medial side of wrist, triquetrum, hamate, pisiform free of superimposition
PA Wrist Position
pronate hand and rest forearm on table, flex digits, CR enters at mid carpal area, Collimate 2 1/2 inches proximal and distal
AP Medial Oblique Wrist position
semi supinated, rotate wrist and hand 45 degrees medially, cr enters at mid carpal area, collimate 2 1/2 inches
PA Axial Projection for Scaphoid Position
stechen method, wrist in PA position, CR angled 20 degrees cephalic, CR enters at scaphoid, collimate to include 2 1/2 inches
Structures seen in Lateromedial Wrist
superimposed distal radius and ulna, metacarpals, demonstrates anterior/posterior displacement, foreign body
structures seen for PA Lateral (external) oblique wrist
trapezium best demonstrated, distal scaphoid, open carpals, radius/ulna/carpal overlap
Structures seen in PA wrist
ulnar styloid, radial styloid, open radioulnar joint, no rotation
Lateromedial Wrist Position
wrist in lateral positon, humerus on same plane, elbow flexed 90 degrees, CR enters at wrist joint , Collimate to include 2 1/2 inches
PA Ulnar Deviation of Wrist Position
PA position of hand, deviated, CR enters at scaphoid, collimate to include 2 1/2 inches
