POCUSPedia
Authoritative definitions of ultrasound protocols, anatomical landmarks, pathology findings, and technical terminology for point-of-care practice across medical specialties.
Near field
In general imaging ultrasound, the "near field" refers to the region closest to the transducer where the ultrasound beam is
Near zone (Fresnel)
In ultrasound physics, the Near zone, or Fresnel zone, refers to the region closest to the transducer where the ultrasound
NEC (necrotizing enterocolitis)
Necrotizing enterocolitis (NEC) is a severe gastrointestinal condition primarily affecting premature or sick newborns, characterized by inflammation and necrosis of
Needle decompression site
The needle decompression site is a critical anatomical landmark for immediate intervention in tension pneumothorax, a life-threatening condition in critical
Needle guidance
Needle guidance in procedural ultrasound involves using real-time imaging to precisely direct a needle into a target, enhancing accuracy and
Neonatal head US
Neonatal head ultrasound (US) is a vital imaging technique in pediatrics, primarily used for assessing brain structures and detecting abnormalities
Neonatal line placement
Neonatal line placement in pediatrics involves using ultrasound for precise insertion of central venous or arterial catheters in newborns. This
Neonatal lung US
Neonatal lung ultrasound (US) is a rapid, non-invasive imaging technique used in pediatrics to assess lung conditions in newborns and
Nephrolithiasis
Nephrolithiasis, commonly known as kidney stones, refers to the formation of solid masses within the urinary tract. In abdominal ultrasound,
Nerve
In musculoskeletal (MSK) ultrasound, a "nerve" refers to a bundle of axons that transmit electrical signals throughout the body, playing
Nerve block
A nerve block is a procedural technique in medicine involving the injection of an anesthetic or anti-inflammatory agent near a