Muskoskeletal radiology Anatomy
In this chapter, it is not possible to present a detailed analysis the normal anatomy of the entire musculoskeletal system as it appears in different imaging methods. Rather, several figures display a few anatomic structures, including the shoulder (Fig. 12), the hand (Fig. 13), the hip
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Figure 11.
CT in the measurement of angles and distances.
Four transaxial CT sections of the knee and lower leg are displayed. In each section anatomic landmarks (e.g., a and b) are defined with X and Y coordinates when using the region of interest. The Z coordinate is represented by the distance between the different slices. By simple calculations anatomic angles and distances in all planes are determined with high accuracy.
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a
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Figure 12.
Normal anatomy of the shoulder.
a) AP radiograph, b) T1-weighted coronal MR image, c) T1weighted transaxial MR image A = acromion, B = biceps tendon, CI = clavicle, Cg = scapula with the glenoid cavity, D = deltoid muscIe, H = humeral head, I = infraspinatus tendon and muscle, P = coracoid process, Se = subscapularis tendon and muscIe, Sm = supraspinatus muscle, arrows = glenoid labrum.
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b
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c
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(Fig. 14), and the knee (Fig. 15). These figures should be used for comparison with other figures in the chapter that demonstrate other abnormal conditions.
Niels Egund, Kjell Jonsson, Holger Pettersson and Donald Resnick