|
A nerve conduction study (NCS) is a medical diagnostic test commonly used to evaluate the function, especially the ability of electrical conduction, of the motor and sensory nerves of the human body. These tests are performed by medical specialists such as specialists in clinical neurophysiology, physiatrists (physical medicine and rehabilitation () physicians), and neurologists who subspecialize in electrodiagnostic medicine. In the United States, neurologists receive training in electrodiagnostic medicine (performing needle electromyography and NCSs) as part of residency training and in some cases acquire additional expertise during a fellowship in clinical neurophysiology, electrodiagnostic medicine, or neuromuscular medicine.〔http://www.acgme.org/acgmeweb/Portals/0/PFAssets/ProgramRequirements/183-343_neuromuscular_med_07012014_1-YR.pdf〕〔http://www.acgme.org/acgmeweb/Portals/0/PFAssets/ProgramRequirements/187_clinical_neurophysiology_07012014_1-YR.pdf〕 PMR physicians receive this training during their residency〔http://www.acgme.org/acgmeweb/Portals/0/PFAssets/ProgramRequirements/340_physical_medicine_rehabilitation_07012014.pdf〕 and can get further training in a neuromuscular fellowship. Outside the US, clinical neurophysiologists learn needle EMG and NCS testing. Nerve conduction velocity (NCV) is a common measurement made during this test. The term NCV often is used to mean the actual test, but this may be misleading, since velocity is only one measurement in the test suite. == Medical uses == Nerve conduction studies along with needle electromyography measure nerve and muscle function, and may be indicated when there is pain in the limbs, weakness from spinal nerve compression, or concern about some other neurologic injury or disorder.〔, which cites * *〕 Spinal nerve injury does not cause neck, mid back pain or low back pain, and for this reason, evidence has not shown EMG or NCS to be helpful in diagnosing causes of axial lumbar pain, thoracic pain, or cervical spine pain.〔 Nerve conduction studies are used mainly for evaluation of paresthesias (numbness, tingling, burning) and/or weakness of the arms and legs. The type of study required is dependent in part by the symptoms presented. A physical exam and thorough history also help to direct the investigation. Some of the common disorders that can be diagnosed by nerve conduction studies are: * Carpal tunnel syndrome * Cubital Tunnel Syndrome * Guillain-Barré syndrome * Guyon's canal syndrome * Peripheral neuropathy * Peroneal neuropathy * Spinal disc herniation * Tarsal Tunnel Syndrome * Ulnar neuropathy 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Nerve conduction study」の詳細全文を読む スポンサード リンク
|