IOM Procedures Services
CDI’s staff technologists have experience in providing monitoring for a wide range of surgical procedures where neurological structures/functions are at risk. Glide the cursor over a specific procedure, below, for the suggested neurophysiological measurement(s) and recommended modalities.
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Services Overview
Otolarynology (ENT)
- Thyroidectomy
- Parathyroidectomy
- Tympanoplasty
- Facial Nerve Decompression
- Mastoidectomy
- Vestibular Nerve Section
- Submandibular Gland Excision
- Acoustic/Vestibular Tumor
- Parotidectomy
- Radical Neck Dissection
- Cochlear Implant
- NeurosurgeryCerebral Aneurysm
- Craniotomy (Crani for Tumor, AVM, etc.)
- Open Skull Based Tumor
- Endoscopic Skull Based Tumor
- Spinal Cord Tumor Resection
- Chiari Malformation
- Microvascular Decompression
- Epilepsy Surgery
- Functional Mapping
- Sub-clinical Seizures
- Dorsal Root Rhizotomy
Spine
- Laminectomy
- Foraminotomy
- Discectomy
- Corpectomy
- Pedical Screw Fixation
- Scoliosis
- Interbody Fusions (PLIF, TLIF, ALIF, etc.)
- Vertebral TumorResection
- Tethered Cord
- Spinal Cord Stimulator Implantation
Diagnostics
- Head Trauma
- Unconsciousness
- Hypothermia
- Monitoring Movement Disorders
- Seizures
- Fibromyalgia
- Trigeminal Neuralgia
- Multiple Sclerosis
- Newborn Hearing Screening
- High Cervical Myelopathy
- Hemifacial Spasm
Orthopedic
- Acetabular Fracture
- Total Hip Arthroplasty
- Total Hip Revision
- Hip I & D
- Total Knee Arthroplasty
- Total Shoulder Arthroplasty
- Bone Tumor Resection
Urology
Cardiac
Vascular
Radiology
Common Monitoring Modalities We Utilize
Glide over the modalities that are in bold for a description or visit our key terms page.
- Scalp
- Corticography
SEPs – Somatosensory evoked potentials
- Upper extremities: median and ulnar nerve
- Brainstem
- Cortical
- Lower extremities: common peroneal and posterior tibial nerve
- Pelvic: Pudendal Nerve
Evoked EMGs – Electromyography
- Upper/lower extremity
- Cranial nerves (CNs III, IV, V, VI, VII, IX, X, XI, and XII)
TcMEPs – Transcranial Motor Evoked Potentials
- Upper extremities
- Lower extremities
- CN VII
Brainstem auditory evoked potentials (BAEP)
- Brainstem
- Direct CAPs (CN VIII and peripheral nerves)
Data Samples
Data samples of the various modalities used to monitor patients:
- EMG
- SSEP
- EEG
- MEP
- CMP
- BAEP
- Below is an example irritation of spontaneous EMG of the left and right recurrent laryngeal nerve being monitored during a thyroidectomy.
- Shown below is SEP data of the median nerve (MSP) observed during a carotid endarterectomy. Changes can be seen in the responses from the left median nerve at the time of clamping of the common carotid artery.
- An example of filtered EEG (left) and spectral EEG (right) during a carotid endarterectomy is pictured here. A decrease in cortical activity in the left hemisphere occured when the left common carotid artery was clamped during the procedure.
- Below is sample data of MEP collected during a craniotomy (left) and a shoulder arthroplasty (right) where the motor cortex is stimulated and potentials are recorded from muscle groups.
- Below is a sample of CMP data from a posterior lumbar fusion. As the pedicle screws are stimulated, evoked responses are obtained in several lower extremity muscle groups.
- This is an example of data collected from a BAEP test monitoring CN VIII, during a retromastoid craniotomy for microvascular decompression of the trigeminal nerve.
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