Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Mesh Analysis

Mesh Analysis

Mesh analysis is a valuable method for simplifying circuit analysis using mesh currents as key circuit variables. Unlike nodal analysis, which focuses on determining unknown voltages, mesh analysis applies Kirchhoff's voltage law (KVL) to find unknown currents within a circuit. This method is particularly convenient in reducing the number of simultaneous equations that need to be solved.
A fundamental concept in mesh analysis is the definition of meshes and mesh currents. A mesh is a closed...

Arc Length of a Curve: Problem Solving

Arc Length of a Curve: Problem Solving

A high-voltage power line spans a 40-meter horizontal distance between two transmission towers, resulting in a 10-meter vertical sag due to the effects of gravity and thermal expansion. The curve formed by the suspended cable is a catenary, which accurately models the behavior of a uniform, flexible cable under its own weight. Unlike a parabolic shape, the catenary is described by the hyperbolic cosine function and offers a precise representation of the cable's form.In this setup, engineers...

Relative Motion Analysis using Rotating Axes-Problem Solving

Relative Motion Analysis using Rotating Axes-Problem Solving

Consider a crane whose telescopic boom rotates with an angular velocity of 0.04 rad/s and angular acceleration of 0.02 rad/s2. Along with the rotation, the boom also extends linearly with a uniform speed of 5 m/s. The extension of the boom is measured at point D, which is measured with respect to the fixed point C on the other end of the boom. For the given instant, the distance between points C and D is 60 meters.
Here, in order to determine the magnitude of velocity and acceleration for point...

Arc Length Function

Arc Length Function

The arc length function represents the total distance traveled along a smooth curve measured from a fixed starting point to a variable endpoint. For curves that are continuous and differentiable, arc length provides a precise way to quantify distance when straight-line approximations are insufficient.To derive arc length, the curve is divided into many small segments. Each segment is approximated by a straight line whose length depends on the horizontal and vertical changes over that interval.

Mesh Analysis for AC Circuits

Mesh Analysis for AC Circuits

In the domain of radio communication, the significance of impedance matching must be considered. It is crucial to ensure the efficient transmission of signals between radio transmitters and receivers. Achieving this balance involves using impedance-matching circuits, with one fundamental configuration comprising a resistor, capacitor, and inductor.
The process of harmonizing these impedances begins with a clear understanding of the input and output signals. Once these signals are known, the...

Design Example: Traverse Angle Computations

Design Example: Traverse Angle Computations

Traverse angle computations are a critical component of surveying, used to compute the internal angles within a closed traverse. A traverse consists of a series of connected lines forming a closed loop, often used for land boundary delineation or mapping. Calculating the internal angles ensures accuracy in the traverse geometry and is essential for checking survey data integrity.The process begins with known azimuths and bearings of the traverse sides. Internal angles at each vertex are...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Correction to: Oncogenic RIT1 mutations in lung adenocarcinoma.

Oncogene·2022

Same author

An open-source platform for interactive collision prevention in photon and particle beam therapy treatment planning.

Biomedical physics & engineering express·2021

Same author

Classification of Articulator Movements and Movement Direction from Sensorimotor Cortex Activity.

Scientific reports·2019

Same author

Repeated Vowel Production Affects Features of Neural Activity in Sensorimotor Cortex.

Brain topography·2018

Same author

The influence of prior pronunciations on sensorimotor cortex activity patterns during vowel production.

Journal of neural engineering·2018

Same author

Spatial-Temporal Dynamics of the Sensorimotor Cortex: Sustained and Transient Activity.

IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society·2018

Search research articles

Related Experiment Video

Updated: Mar 2, 2026

Radiation Planning Assistant - A Streamlined, Fully Automated Radiotherapy Treatment Planning System

Radiation Planning Assistant - A Streamlined, Fully Automated Radiotherapy Treatment Planning System

Published on: April 11, 2018

SU-E-T-627: Optimal Partial Arcs in VMAT Planning.

J Wala¹, W Chen¹, E Salari¹

¹Massachusetts General Hospital, Boston, MA.

Medical Physics

|May 19, 2017

Summary

This summary is machine-generated.

This study introduces a method to create faster partial arc Volumetric Modulated Arc Therapy (VMAT) plans. By optimizing arc selection, significant reductions in treatment delivery time were achieved for lung and liver cancer cases.

Keywords:

Anatomy Awards Cancer Intensity modulated radiation therapy Liver Lungs Medical treatment planning Sequence analysis

More Related Videos

Operation of the Collaborative Composite Manufacturing CCM System

Operation of the Collaborative Composite Manufacturing CCM System

Published on: October 1, 2019

Author Spotlight: Improving Radiation Therapy Access with Radiation Planning Assistant

Author Spotlight: Improving Radiation Therapy Access with Radiation Planning Assistant

Published on: October 6, 2023

Related Experiment Videos

Last Updated: Mar 2, 2026

Radiation Planning Assistant - A Streamlined, Fully Automated Radiotherapy Treatment Planning System

Radiation Planning Assistant - A Streamlined, Fully Automated Radiotherapy Treatment Planning System

Published on: April 11, 2018

Operation of the Collaborative Composite Manufacturing CCM System

Operation of the Collaborative Composite Manufacturing CCM System

Published on: October 1, 2019

Author Spotlight: Improving Radiation Therapy Access with Radiation Planning Assistant

Author Spotlight: Improving Radiation Therapy Access with Radiation Planning Assistant

Published on: October 6, 2023

Area of Science:

Medical Physics
Radiation Oncology
Cancer Treatment Technology

Background:

Volumetric Modulated Arc Therapy (VMAT) is a widely used radiotherapy technique.
Optimizing treatment delivery time is crucial for patient comfort and throughput.
Partial arc VMAT offers potential for reduced treatment times compared to full arc VMAT.

Purpose of the Study:

To develop and describe a method for generating partial arc VMAT plans with minimal delivery time.
To maintain dose quality while reducing treatment duration.

Main Methods:

An initial 180-beam equi-spaced IMRT plan was created as a benchmark for dose quality.
A VMAT optimization algorithm (VMERGE) was employed to find the fastest partial arc plan.
An exhaustive search across 169 possible partial arcs was conducted, respecting treatment constraints.

Main Results:

The method was successfully applied to lung and liver cancer cases.
Significant time savings were observed: lung treatment time reduced from 185s to 94s, and liver from 263s to 165s.
Optimal partial arcs were identified for specific target locations.

Conclusions:

An exhaustive search over partial arcs combined with VMAT optimization effectively determines the fastest delivery plan.
Partial arc VMAT significantly shortens treatment delivery times.
This approach enhances efficiency in VMAT delivery.