Author: drspine

CT Angiography: Definition, Uses, and Clinical Overview

CT Angiography is a CT scan performed with contrast dye to make blood vessels show up clearly. It helps clinicians see vessel narrowing, blockage, bulges, and other structural changes. It is commonly used in heart and vascular care, including coronary arteries and the aorta. It is also used in emergency and outpatient settings to evaluate chest pain and vascular symptoms.

Babinski sign: Definition, Uses, and Clinical Overview

Babinski sign is a finding on the neurologic exam based on how the toes move when the sole of the foot is stroked. In adults, an “upgoing” big toe (often with fanning of the other toes) can suggest a problem in the brain or spinal cord pathways that control movement. It is commonly used in spine, neurology, emergency, and primary care evaluations when clinicians are checking for nervous system involvement. Babinski sign is not a diagnosis by itself; it is one clue that must be interpreted with the full exam and clinical context.

PVR: Definition, Uses, and Clinical Overview

PVR most commonly means **pulmonary valve replacement** in cardiovascular medicine. It is a procedure that **replaces the pulmonary valve** to improve blood flow from the heart to the lungs. PVR is often used in people with **congenital heart disease**, especially after earlier heart repairs. In some settings, PVR can also mean **pulmonary vascular resistance**, so clinicians clarify the context.

Pulse Volume Recording: Definition, Uses, and Clinical Overview

Pulse Volume Recording is a noninvasive vascular test that measures pulse-related changes in limb blood volume. It is commonly used to evaluate blood flow in the arms and legs when peripheral artery disease is suspected. The test records waveforms (tracings) that reflect how well arterial blood reaches different limb segments. It is often performed in vascular labs, cardiology practices, and hospital-based diagnostic settings.

Transcranial Doppler: Definition, Uses, and Clinical Overview

Transcranial Doppler is an ultrasound test that measures blood flow in major arteries inside the skull. It uses sound waves to estimate how fast blood is moving through brain arteries. It is commonly used in stroke and neurovascular care, and sometimes in cardiovascular evaluations of blood clots or shunts. It is noninvasive and is typically performed at the bedside or in an ultrasound lab.

Balance impairment: Definition, Uses, and Clinical Overview

Balance impairment means reduced ability to stay upright and steady during standing, walking, or changing positions. It is a symptom and functional finding, not a single diagnosis. It is commonly discussed in spine, neurology, ENT (ear/vestibular), and rehabilitation settings. Clinicians use the term to describe fall risk, walking difficulty, and possible nervous system involvement.

Carotid Duplex: Definition, Uses, and Clinical Overview

Carotid Duplex is an ultrasound test that evaluates blood flow and structure in the carotid arteries in the neck. It is commonly used to look for narrowing (stenosis) caused by plaque (atherosclerosis). It combines two ultrasound approaches to show both anatomy and flow. Clinicians use it in outpatient vascular labs, hospitals, and stroke evaluation settings.