Doppler ultrasound
E669200
Doppler ultrasound is a medical imaging technique that uses high-frequency sound waves to measure and visualize blood flow within vessels and the heart.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Doppler ultrasound canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7490149 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Doppler ultrasound Context triple: [Doppler effect, usedIn, Doppler ultrasound]
-
A.
USG
USG is a regional higher education center in Rockville, Maryland that hosts programs from multiple University System of Maryland institutions on a single shared campus.
-
B.
USG
USG is the acronym commonly used for the University System of Georgia, the public higher education system for the state of Georgia in the United States.
-
C.
ECT
ECT is the three-letter station code used by Transport for London to identify Earl's Court Underground station.
-
D.
MRA
MRA is the IATA airport code for Misrata International Airport, a commercial airport serving the city of Misrata in Libya.
-
E.
Proscan
Proscan is a consumer electronics brand known for producing affordable televisions and related audio-visual equipment.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Doppler ultrasound Target entity description: Doppler ultrasound is a medical imaging technique that uses high-frequency sound waves to measure and visualize blood flow within vessels and the heart.
-
A.
USG
USG is a regional higher education center in Rockville, Maryland that hosts programs from multiple University System of Maryland institutions on a single shared campus.
-
B.
USG
USG is the acronym commonly used for the University System of Georgia, the public higher education system for the state of Georgia in the United States.
-
C.
ECT
ECT is the three-letter station code used by Transport for London to identify Earl's Court Underground station.
-
D.
MRA
MRA is the IATA airport code for Misrata International Airport, a commercial airport serving the city of Misrata in Libya.
-
E.
Proscan
Proscan is a consumer electronics brand known for producing affordable televisions and related audio-visual equipment.
- F. None of above. chosen
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
medical imaging technique
ⓘ
ultrasound modality ⓘ |
| advantage |
bedside applicability
ⓘ
real-time imaging ⓘ relatively low cost ⓘ |
| appliedTo |
blood vessels
ⓘ
heart ⓘ |
| assesses |
direction of blood flow
ⓘ
pattern of blood flow ⓘ velocity of blood flow ⓘ |
| basedOn | Doppler effect NERFINISHED ⓘ |
| canBeCombinedWith |
B-mode ultrasound
NERFINISHED
ⓘ
M-mode ultrasound ⓘ |
| doesNotUse | ionizing radiation ⓘ |
| hasSubtype |
color Doppler
ⓘ
continuous-wave Doppler ⓘ power Doppler ⓘ pulsed-wave Doppler NERFINISHED ⓘ spectral Doppler ⓘ tissue Doppler imaging ⓘ |
| interpretedBy |
cardiologist
ⓘ
radiologist ⓘ |
| limitation |
angle dependence of velocity measurements
ⓘ
limited penetration in obese patients ⓘ operator dependence ⓘ |
| measures | blood flow ⓘ |
| nonInvasive | true ⓘ |
| performedBy | sonographer ⓘ |
| provides |
color flow map
ⓘ
quantitative velocity measurements ⓘ waveform display ⓘ |
| usedIn |
cardiology
ⓘ
emergency medicine ⓘ gynecology ⓘ nephrology ⓘ neurology ⓘ obstetrics ⓘ vascular medicine ⓘ |
| usedToAssess |
cardiac output
ⓘ
fetal well-being ⓘ placental blood flow ⓘ portal hypertension ⓘ renal artery stenosis ⓘ |
| usedToDiagnose |
carotid artery stenosis
ⓘ
congenital heart disease ⓘ deep vein thrombosis ⓘ peripheral arterial disease ⓘ valvular heart disease ⓘ venous insufficiency ⓘ |
| uses | high-frequency sound waves ⓘ |
| usesContrastAgents | sometimes ⓘ |
| visualizes | blood flow ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Doppler ultrasound Description of subject: Doppler ultrasound is a medical imaging technique that uses high-frequency sound waves to measure and visualize blood flow within vessels and the heart.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.