Recruitment

Recruitment Status
Unknown status

Inclusion Criteria

Gender: Unlimited
Because different types of brain diseases, those who received conventional catheter vascular examination.
Age: 20 years old to 99 years old
Gender: Unlimited
Because different types of brain diseases, those who received conventional catheter vascular examination.
Age: 20 years old to 99 years old

Exclusion Criteria

Neck inflammation locally who can not admit the sound.
Due to inability to cooperate to accept those recordings.
Neck inflammation locally who can not admit the sound.
Due to inability to cooperate to accept those recordings.

Summary

Conditions
  • Carotid Atherosclerosis
  • Seeing Sounds as Colors
  • Stenosis
  • Stroke
Type
Observational
Design
  • Observational Model: Cohort
  • Time Perspective: Retrospective

Participation Requirements

Age
Between 20 years and 90 years
Gender
Both males and females

Description

The investigators plan to recruit data from patients that come to their department for angiography study and intervention (n=300) with different disease entity such as atherosclerosis, tumor, aneurysm, arteriovenous malformation or fistula, and other vascular disorders. A period of about 20 seconds ...

The investigators plan to recruit data from patients that come to their department for angiography study and intervention (n=300) with different disease entity such as atherosclerosis, tumor, aneurysm, arteriovenous malformation or fistula, and other vascular disorders. A period of about 20 seconds of the carotid phonoangiography was recorded. Standard for comparison: catheter angiography, CTA, MRI/MRA. The degree of stenosis, the wall thickness, SI and density change was clustered and compared. The clinical and laboratory data will be reviewed and the vascular risk factors will be calculated. Spectrum analysis: The sound spectrum will be analysis with the FFT, wavelet, entropy, complexity, and HHT algorithms. The correlation between change of spectrums and also the correlated clinical, images, and laboratory change will be further analysis by statistic method.

Inclusion Criteria

Gender: Unlimited
Because different types of brain diseases, those who received conventional catheter vascular examination.
Age: 20 years old to 99 years old
Gender: Unlimited
Because different types of brain diseases, those who received conventional catheter vascular examination.
Age: 20 years old to 99 years old

Exclusion Criteria

Neck inflammation locally who can not admit the sound.
Due to inability to cooperate to accept those recordings.
Neck inflammation locally who can not admit the sound.
Due to inability to cooperate to accept those recordings.

Tracking Information

NCT #
NCT02049463
Collaborators
Not Provided
Investigators
  • Principal Investigator: Hon-man Liu, MD, MBA National Taiwan University Hospital
  • Hon-man Liu, MD, MBA National Taiwan University Hospital