2.1.1 Introduction Essential parts of a magnetic resonance imaging (MRI) system, radiofrequency (RF) coils or antennas are used to transmit and/or receive signal. Phased-array coils combine multiple small coil elements to transmit or receive signal using independent channels. Array coils…
1.3B.1 Introduction The introduction of magnetic resonance imaging (MRI) to the field of spine trauma has vastly improved the clinical diagnosis of spinal cord injury (SCI). MRI has advantages over conventional X-ray and computer tomography (CT) as it more precisely…
1.3A.1 Introduction Prior to the 1980s a diagnosis of trauma to the spinal cord was largely inferred based on either X-rays showing misalignment of the spinal column or myelography whereby interruption of the flow of contrast medium in the cerebral…
1.2.1 Introduction The spinal cord is a common site of involvement in inflammatory demyelinating diseases of the central nervous system (CNS). The most common such disease, multiple sclerosis, is the leading cause of nontraumatic disability in young adults, with an…
1.1.1 Introduction Neuroaxonal injury of the spinal cord occurs in a broad spectrum of clinically and pathologically heterogeneous neurodegenerative diseases, typically with serious clinical consequences for patients. Typically, the clinical syndrome produced by injury to the spinal cord includes weakness…
You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here
How to Image the Foot and Ankle See the protocols for foot and ankle magnetic resonance imaging (MRI) at the end of this chapter. The foot and ankle are among the most difficult anatomic sites to image, simply because of…
How to Image the Knee See the protocols for knee MRI at the end of this chapter. Magnetic resonance imaging (MRI) of the knee is the most frequently requested MRI joint study in musculoskeletal radiology. The reasons for this are…
How to Image the Hips and Pelvis See the hip and pelvis protocols at the end of the chapter. Coils and patient position: Generally, when evaluating the hips for entities such as avascular necrosis (AVN) or fractures, it is possible…
How to Image the Spine See spine protocols at the end of the chapter. Coils and patient position: Phased array spine coils should be used for all spine imaging. Patients are supine in the magnet. Image orientation ( Box 13.1…