Reverb Comets and Rings
Reverberation Artifact
- Equally spaced reflection artifact
- A lines – normal finding in lung US
Narration
Reverberation
- Closely spaced repeating echoes
- Metallic elements, calcifications, cholesterol
Narration
Comet Tail Artifact
- Dense tapering trail of reverberation artifact
- Metallic elements, calcifications, cholesterol
- Adenomyomatosis
- Benign condition of gallbladder
- Cholesterol deposits in wall
Narration
Comet Tail Artifact
- Dense tapering trail of reverberation artifact
- Metallic elements, calcifications, cholesterol
Narration
Ring Down Artifact
- Resonance from an air liquid interface
- From air (not calcium, metal, etc.)
- Can appear similar to comet tail
- Confusion in the literature
"B lines"
- Alveolar interstitial syndrome (AIS)
- Air - water -> artifact
- Pulmonary edema, others
Narration
Ring Down Artifact
- Resonance from an air liquid interface
- From air (not calcium, metal, etc.)
- Pneumobilia
- Air in liver from gas forming organism in sepsis
Narration
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v:4 | onAr:0 | onPs:2 | tLb:4 | tLbJs:0uStat: False | db:0 | shouldInvoke:True | pu:False | em: | i: 0 | p: 43215 | pv:1 | refreshTime: 1/1/0001 12:00:00 AM | now: 1/21/2025 12:28:30 PM | c: United States
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