Related Experiment Video
Updated: Feb 27, 2026
06:38
Using a Virtual Reality Walking Simulator to Investigate Pedestrian Behavior
Published on: June 9, 2020
5.3K
Crossing the Rubicon: A Closer Look at the Pedal Loop Technique
1Interventional Cardiology, Istituto Clinico Città di Brescia Hospital, Brescia, Italy.
Annals of Vascular Surgery
|July 11, 2017
Summary
The pedal loop (PL) technique offers a viable endovascular solution for limb salvage in patients with critical limb ischemia. This complex procedure, when mastered through key technical points, provides a crucial alternative for treating the plantar arch arteries.
Area of Science:
- Vascular Surgery
- Endovascular Interventions
- Limb Salvage Procedures
Background:
- Peripheral bypass surgery outcomes depend on plantar arch integrity.
- The plantar arch has historically been a challenging surgical and endovascular target due to delicate arterial structures.
Observation:
- The plantar arch shares anatomical similarities with the left anterior descending coronary artery.
- Endovascular recanalization using coronary techniques was proposed for the plantar arch.
Findings:
- The pedal loop (PL) technique has gained popularity and demonstrated efficacy in large-scale patient registries.
- Despite its complexity, the PL technique offers limited alternatives in current vascular practice.
Implications:
- Mastery of 12 key technical points can facilitate wider adoption of the PL technique.
- This approach provides a critical treatment option for patients at risk of limb loss due to plantar arch disease.
Related Concept Videos
01:19Root-Locus Method
536
A cruise control system in a car is designed to maintain a specified speed automatically by adjusting the gas pedal. The system continuously measures the vehicle's speed and makes fine adjustments to the pedal to achieve this goal. The root locus method is particularly useful for understanding how the cruise control system's behavior changes under varying conditions, such as when the car goes uphill, downhill, or faces strong wind resistance.
This system can be represented by a block...
This system can be represented by a block...
536
01:17Rolling Resistance: Problem Solving
874
Rolling resistance, also known as rolling friction, is the force that resists the motion of a rolling object, such as a wheel, tire, or ball, when it moves over a surface. It is caused by the deformation of the object and the surface in contact with each other, as well as other factors like internal friction, hysteresis, and energy losses within the materials. Rolling resistance opposes the object's motion, requiring additional energy to overcome it and maintain movement. In practical...
874
01:16Hydraulic Jump: Problem Solving
616
To analyze a hydraulic jump in a rectangular channel with a flow speed of 6 meters per second, follow these steps:Calculate Effective Upstream Velocity:When the downstream gate closes, a hydraulic jump forms, traveling upstream at 2 meters per second. This wave speed combines with the initial channel flow velocity, creating an effective upstream velocity.Identify Flow Velocities Before and After the Hydraulic Jump:Upstream of the hydraulic jump, the effective flow velocity includes both the...
616
01:26Cross-bridge Cycle
123.4K
As muscle contracts, the overlap between the thin and thick filaments increases, decreasing the length of the sarcomere—the contractile unit of the muscle—using energy in the form of ATP. At the molecular level, this is a cyclic, multistep process that involves binding and hydrolysis of ATP, and movement of actin by myosin.
123.4K
01:14Node Analysis for AC Circuits
718
Consider an angioplasty system featuring a catheter equipped with a turbine, a critical tool for removing plaque deposits from coronary arteries. This intricate medical device operates using a circuit model reminiscent of a dual-node RLC circuit powered by a current-controlled voltage source.
To unravel the complexities of this system, nodal analysis is employed, a powerful technique founded on Kirchhoff's current law (KCL), which remains valid for phasors. AC circuits can effectively be...
To unravel the complexities of this system, nodal analysis is employed, a powerful technique founded on Kirchhoff's current law (KCL), which remains valid for phasors. AC circuits can effectively be...
718
01:19Plotting and Calibrating the Root Locus
494
Root loci often diverge as system poles shift from the real axis to the complex plane. Key points in this transition are the breakaway and break-in points, indicating where the root locus leaves and reenters the real axis. The branches of the root locus form an angle of 180/n degrees with the real axis, where n is the number of branches at a breakaway or break-in point.
The maximum gain occurs at the breakaway points between open-loop poles on the real axis, while the minimum gain is...
The maximum gain occurs at the breakaway points between open-loop poles on the real axis, while the minimum gain is...
494