Comparison of tissue disruption caused by excimer and midinfrared lasers in clinical simulation

Quan, Kara J.; Hodgson, John McB.

doi:10.1002/(sici)1097-0304(199605)38:1<50::aid-ccd11>3.0.co;2-w

Cited by 4 publications

(1 citation statement)

References 21 publications

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“…To observe possible mechanical or laser-induced acoustic trauma it is necessary to perform more sophisticated histological evaluations (van Erven 1992, Quan and Hodgson 1996).…”

Section: Resultsmentioning

confidence: 99%

Speed of particles ejected from animal skin by CO₂laser pulses, measured by laser Doppler velocimetry

Nicola

Nicola²,

Vieira³

et al. 2002

Phys. Med. Biol.

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During ablation of tissue with laser pulses rapid sublimation of matter occurs and high pressures are exerted within the tissue, resulting in steam. smoke and particles being expelled. In this paper we report the speed of particles ejected from animal tissue exposed to CO2 laser pulses measured directly by laser Doppler velocimetry (LDV). Speeds recorded just above animal skin were in the range of 9 to 18 m s(-1) for laser pulses of 128 to 384 J cm(-2) respectively. Aerodynamic turbulence slowed the particles down to a critical speed Vc of 4 m s(-1) within a few millimetres above the laser ablation site. Once the particles reach this minimum speed, if no collisions occur, they will only decelerate by gravitational action and the residual kinetic energy will send the particles up to about 0.87 m from the skin surface. Since ejected particles may carry viable cells, acting as disease vectors during laser surgery, our results suggest that the LDV technique should be used to measure the speed of particles ejected from healthy or pathological human tissues, helping to establish safe conditions during laser surgery.

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“…To observe possible mechanical or laser-induced acoustic trauma it is necessary to perform more sophisticated histological evaluations (van Erven 1992, Quan and Hodgson 1996).…”

Section: Resultsmentioning

confidence: 99%

Speed of particles ejected from animal skin by CO₂laser pulses, measured by laser Doppler velocimetry

Nicola

Nicola²,

Vieira³

et al. 2002

Phys. Med. Biol.

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Prospective, Randomized, Multicenter Comparison of Laser-Facilitated Balloon Angioplasty Versus Stand-Alone Balloon Angioplasty in Patients With Obstructive Coronary Artery Disease

Stone

Marchena²,

Dageforde³

et al. 1997

Journal of the American College of Cardiology

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Photoacoustic imaging for guidance of interventions in cardiovascular medicine

2019

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Imaging guidance is paramount to procedural success in minimally invasive interventions. Catheter-based therapies are the standard of care in the treatment of many cardiac disorders, including coronary artery disease, structural heart disease and electrophysiological conditions. Many of these diseases are caused by, or effect, a change in vasculature or cardiac tissue composition, which can potentially be detected by photoacoustic imaging. This review summarizes the state of the art in photoacoustic imaging approaches that have been proposed for intervention guidance in cardiovascular care. All of these techniques are currently in the preclinical phase. We will conclude with an outlook towards clinical applications.

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Comparison of tissue disruption caused by excimer and midinfrared lasers in clinical simulation

Cited by 4 publications

References 21 publications

Speed of particles ejected from animal skin by CO₂laser pulses, measured by laser Doppler velocimetry

Speed of particles ejected from animal skin by CO₂laser pulses, measured by laser Doppler velocimetry

Prospective, Randomized, Multicenter Comparison of Laser-Facilitated Balloon Angioplasty Versus Stand-Alone Balloon Angioplasty in Patients With Obstructive Coronary Artery Disease

Photoacoustic imaging for guidance of interventions in cardiovascular medicine

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Comparison of tissue disruption caused by excimer and midinfrared lasers in clinical simulation

Cited by 4 publications

References 21 publications

Speed of particles ejected from animal skin by CO2laser pulses, measured by laser Doppler velocimetry

Speed of particles ejected from animal skin by CO2laser pulses, measured by laser Doppler velocimetry

Prospective, Randomized, Multicenter Comparison of Laser-Facilitated Balloon Angioplasty Versus Stand-Alone Balloon Angioplasty in Patients With Obstructive Coronary Artery Disease

Photoacoustic imaging for guidance of interventions in cardiovascular medicine

Contact Info

Product

Resources

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Speed of particles ejected from animal skin by CO₂laser pulses, measured by laser Doppler velocimetry

Speed of particles ejected from animal skin by CO₂laser pulses, measured by laser Doppler velocimetry