What question did this study set out to answer?

To design an electromagnetic blood flow measurement system that achieves a stable zero baseline using a catheter-deliverable probe and an interrupted resonance circuit.

April 1, 1974Proceedings of the National Academy of SciencesOpen Access

A Constant-Field Interrupted Resonance System for Percutaneous Electromagnetic Measurement of Blood Flow

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Authors

AKAlexander KolinAllegheny College JSJames R. SteeleSouthampton Solent University JIJames S. ImaiCalifornia State University, Dominguez Hills

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Implication

Enables stable percutaneous electromagnetic flowmetry in research; leaves open clinical validation and adoption.

Key Points

To design an electromagnetic blood flow measurement system that achieves a stable zero baseline using a catheter-deliverable probe and an interrupted resonance circuit.
Engineered a deformable flow transducer of minimal lateral dimensions insertable percutaneously via a standard angiographic catheter.
Coupled the sensor with an extracorporeal magnet driven by an interrupted resonance circuit generating current plateaus with zero rate of change (di/dt = 0).
Secured a reliable zero baseline by sampling the blood flow signal at the termination of the constant-field plateaus (dB/dt = 0) and switching off the magnet.
Eliminated transformer interference artifacts by aligning flow sampling intervals strictly with horizontal current plateaus.

Structured PICO

Intervention

Constant-Field Interrupted Resonance System with deformable flow probes and an extracorporeal magnet introduced percutaneously

Describes a novel percutaneous electromagnetic blood flow measurement system using an interrupted resonance current generator.

Cite This Study

Kolin et al. (1974) studied this question.

synapsesocial.com/papers/6a9e70c79b96c7cdcc944710 https://doi.org/10.1073/pnas.71.4.1294

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A Constant-Field Interrupted Resonance System for Percutaneous Electromagnetic Measurement of Blood Flow

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

A Constant-Field Interrupted Resonance System for Percutaneous Electromagnetic Measurement of Blood Flow

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

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