What does this research mean for the field?

The ultrasonic quantitative flow measurement system noninvasively measures absolute common carotid artery flow volume with an error of less than ±7% and accurately detects physiological decreases in flow caused by aging, standing, and sleep. Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

January 1, 1988NeurosonologyOpen Access

Measurement of Common Carotid Flow Volume by Ultrasonic Quantitative Flow Measurement System

Q: What is the clinical evidence from this study?

Study design: Observational. Population: Healthy subjects and physiological variations. Intervention: Ultrasonic quantitative flow measurement system (QFM) vs. Electromagnetic flow meter and physiological baseline states. Primary outcome: Accuracy of common carotid artery flow volume measurement.

View Full Paper

Ask AI

Bookmark

Key result

Ultrasonic QFM measures common carotid artery flow with under ~7% error and detects physiological decreases.

Why the study?

Can an ultrasonic quantitative flow measurement system accurately measure common carotid artery flow volume noninvasively?

Population

Human subjects and experimental models for device validation

Comparison

Ultrasonic quantitative flow measurement system vs Electromagnetic flow meter

Design

Other

Authors

KKKuniyasu KODAIRAJikei University School of Medicine TWTakashi WadaKanazawa University KMKen-ichi MAIEJikei University School of Medicine

Discussion

Member takes

Implication

Requires prospective validation before clinical use; leaves open its role in carotid flow research.

Study Design

Type

Observational

Structured PICO

Can an ultrasonic quantitative flow measurement system accurately measure common carotid artery flow volume noninvasively?

Population

Healthy subjects and patients evaluated for common carotid artery blood flow volume using an ultrasonic quantitative flow measurement system to determine accuracy and physiological variations.

Exposure

Ultrasonic quantitative flow measurement system (QFM)

Comparator

Electromagnetic flow meter (for accuracy validation)

Outcome

Absolute flow volume of the common carotid artery (CCA)surrogate

The ultrasonic quantitative flow measurement system provides an accurate, noninvasive method for measuring common carotid artery flow volume, which varies with age, posture, and sleep stage.

Limitations

Requires proper probe handling to detect adequate amplitude of wall echo
Requires accurate setting of the gate position at the vessel inner surface echo to ensure reproducibility
Requires proper probe handling to detect adequate amplitude of wall echo and to set the gate position at the vessel inner surface echo

Cite This Study

KODAIRA et al. (1988) conducted an observational in Healthy subjects and physiological variations. Ultrasonic quantitative flow measurement system (QFM) vs. Electromagnetic flow meter and physiological baseline states was evaluated on Accuracy of common carotid artery flow volume measurement. The ultrasonic quantitative flow measurement system measured common carotid artery absolute flow volume with an error of less than ±7% and detected physiological decreases with age, standing, and sleep.

synapsesocial.com/papers/6aa576aa27cf4f5fd98e3121 https://doi.org/10.2301/neurosonology.1.99

View Full Paper

Ask AI

Bookmark

Measurement of Common Carotid Flow Volume by Ultrasonic Quantitative Flow Measurement System

Discussion

Member takes

Implication

Study Design

Structured PICO

Limitations

Cite This Study

Measurement of Common Carotid Flow Volume by Ultrasonic Quantitative Flow Measurement System

Discussion

Member takes

Implication

Study Design

Structured PICO

Limitations

Cite This Study

Also Consider

Also Consider