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Anatomy MRI - Essay Example

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It is formed of combined articulation of Humerus, ulna and radius bones of upper extremity along with joint capsule and pair of ligaments to provide strength and stability. Elbow offers wide range of movements such as flexion, extension,…
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Anatomy MRI
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Download file to see previous pages Bony articulation is well protected by joint capsule (Wessely et al, 2006, pp.201-205).
There are mainly two ligaments on either side condensed with the joint capsule. They are ulnar co-lateral ligament and radial co-lateral ligament. Ligaments support the join by adding strength to the joint (Wessely et al, 2006, pp.201-205).
Muscles surrounding elbow are Biceps Brachii and Brachialis on anterior side whereas posterior side is covered with Triceps Brachii and Anconeus. On medial side, there are Pronator Teres, Palmaris longus and the group of Flexor digitorum superficialis,Profoundus, Flexor carpi radialis and Ulnaris and lastly flexor pollicis longus and on lateral side, Supinator and Brachioradialis along with the group of extensor muscles of hand and wrist (Wessely et al, 2006, pp.201-205).
There are three major nerves passing through elbow joint. Those are median nerve, Radial nerve and ulnar nerve. Ulnar nerve lies superficially and is commonly injured due to its superficial placement whereas radial and median nerves lie deep in the fossa. Brachial artery passes through the cubital fossa and it is located over Brachialis muscle. This artery further divides into Ulnar and Radial artery (Wessely et al, 2006, pp.201-205).
While MRI elbow is examined, patient and his affected arm are arranged in such a manner to achieve maximum visualization and accurate diagnosis. Some factors do have influence over patient’s arrangement such as disease pathology and restricted hand movements; limitation of existing MRI machine, patient’s age etc. Here is the brief comparison of two common positions tried during elbow MRI,
Patient supine with elbow extended- Patient is asked to lie down in supine position with arm extended and wrist straight. Circular coil is placed underneath the elbow for high intensity resolution. This position is not only suitable to all the patient but also helps to achieve T1 weighted images on coronal plane but “Short time inversion ...Download file to see next pagesRead More
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