Scholars@Duke
Aiping Ding

Aiping Ding

Assistant Professor of Radiology
Radiology
aiping.ding@duke.edu
2424 Erwin Road, Suite 302 (DUMC 2731), Durham, NC 27705
2424 Erwin Road, Suite 302 (DUMC 2731), Durham, NC 27705

Scholarly Works - Conferences

A Data-Centric Strategy for Developing CT Dose and Noise Reference Levels from Clinical Patient Populations

Conference · November 27, 2018 PURPOSE To develop a data-centric strategy solution for developing CT dose and noise reference levels across large clinical patient populations and in CT scanners. METHOD AND MATERIALS This IRB-exempt study evaluated CT abdominopelvic (AP)-related examin ... Cite

Robustness and Accuracy of An Automated Solution for Measuring Image Noise, Spatial Resolution, Contrast, and Dose in Clinical CT Images: Efforts Towards Patient-Specific Quantifications of CT Image Quality and Radiation Dose

Conference Medical Physics · June 30, 2017 Purpose: To develop a robust and accurate automated solution for measuring image noise, spatial resolution, contrast, and radiation dose using clinical patient CT images. Methods: An automated infrastructure has been developed to measure the image quality ... Cite

Image Quality Monitoring: Variability in Contrast Enhancement Across a Clinical Population

Conference Medical Physics · June 30, 2017 Purpose: Iodinated contrast agents are commonly used in computed tomography (CT) to delineate vasculature and blood perfusion by enhancement of Hounsfield unit values. Contrast-enhancement is affected by anatomical and physiological factors, and varies acr ... Cite

TU‐G‐103‐01: Monte Carlo Simulation and Dose Calculation of Chest CT Scan with Tube Current Modulation

Conference Medical Physics · January 1, 2013 Purpose: To establish the method of organ dose calculation through Monte Carlo simulations for patients taking CT scans with tube current modulation (TCM), and to give the dose results as well as the preliminary comparison of the dose with TCM and the dose ... Full text Cite

TU‐G‐103‐02: Clinical Evaluation of VirtualDose — a Software for Tracking and Reporting CTDI, DLP, Organ and Effective Dose for Adult and Pediatric Patient

Conference Medical Physics · January 1, 2013 Purpose: To update the development and clinical testing of a new Software as a Service (SaaS) ‐ VirtualDose for tracking and reporting CT doses. Methods: Incorporating SaaS technology and the comprehensive original dose data derived from Monte Carlo simula ... Full text Cite

WE‐A‐218‐09: A Comprehensive CT Organ Dose Database for Weight‐Specific Adult and Pediatric Patients

Conference Medical Physics · January 1, 2012 Purpose: To describe the joint effort to develop a comprehensive CT organ dose database for weight‐specific adult and pediatric patients. Methods: Two validated CT scanner models (GE LightSpeed Pro 16 and Siemens SOMATOM sensation 16) operated at different ... Full text Cite

MO‐F‐213CD‐03: Design and Testing of the VirtualDose Software Under the Software as a Service (SaaS) Platform for Tracking and Reporting CT Doses

Conference Medical Physics · January 1, 2012 Purpose: To report recent progress toward developing and testing the VirtualDose software under the ‘Software as a Service (SaaS)’ platform for tracking and reporting patient CT doses. Methods: Many of existing tools for reporting CT dose are based on data ... Full text Cite

MO‐F‐213CD‐01: GPU‐Based Monte Carlo Methods for Accelerating Radiographic and CT Imaging Dose Calculations: Feasibility and Scalability

Conference Medical Physics · January 1, 2012 Purpose: To develop a Graphics Processing Unit (GPU) based Monte Carlo (MC) code that uses a dual‐GPU system to accelerate radiographic simulation and CT imaging dose calculations. Methods: We considered two clinical cases, a chest x‐ray radiography and an ... Full text Cite

SU‐C‐217A‐03: Position Sensitivity of Calculated Dose‐Length‐Product‐To‐Effective‐ Dose Conversion Factors in Computed Tomography Examination

Conference Medical Physics · January 1, 2012 Purpose: To quantify the sensitivity of Dose Length Product to Effective Dose conversion factors (k‐factors) to scan length and position. Methods: To convert the recorded Dose Length Product (DLP) to an estimate of Effective Dose (E), a set of conversion f ... Full text Cite

COMPARISON OF PARTICLE-TRACKING FEATURES IN GEANT4 AND MCNPX CODES FOR APPLICATIONS IN MAPPING OF PROTON RANGE UNCERTAINTY.

Conference Nuclear technology · July 2011 The accuracy of proton therapy is partially limited by uncertainties that result from changing pathological conditions in the patient such as tumor motion and shrinkage. These uncertainties can be minimized with the help of a time-resolved range telescope. ... Full text Cite

TH‐E‐211‐06: Further Development of VirtualDose Software for CT Dose Assessment: Realistic Phantoms and Smartphone User Interfaces

Conference Medical Physics · January 1, 2011 Purpose: To demonstrate the feasibility of a new software applications for both PC and smartphone users to easily track patient CT doses. Methods: Many of existing tools for reporting CT dose are based on data derived from stylistic phantoms. Based on exte ... Full text Cite

TH‐A‐214‐06: Organ Dose Weighting Methods for Tube Current Modulated CT Exams: Demonstration Using Adult Patient Phantoms

Conference Medical Physics · January 1, 2011 Purpose: To demonstrate a method to estimate organ doses from tube current modulated (TCM) CT examinations using angular organ dose weighting. Method and Materials: An extensive set of Monte Carlo dose calcualtions has become available in recent years usin ... Full text Cite

TH‐A‐214‐04: Impact of Body Size of Obese Patients on PET/CT Dose Estimates: Monte Carlo Calculations Using a Set of BMI‐Adjustable Phantoms

Conference Medical Physics · January 1, 2011 Purpose: To assess the effect of obese patient's body mass index (BMI) on organ doses from CT and PET exams. Methods: A set of 5 computational phantoms with different BMIs were created for PET and CT dose calculations using the Monte Carlo N‐Particle Exten ... Full text Cite

TH‐C‐201B‐04: Methods to Account for Imaging Doses from Diagnostic MDCT or Kilovoltage CBCT in Prostate Treatment Planning: Monte Carlo Studies Using Scanner Models and Patient‐Specific Anatomy

Conference Medical Physics · January 1, 2010 Purpose: MDCT and kilovoltage CBCT are increasingly used in IGRT. AAPM TG‐75 has made a series of recommendations on imaging doses. Recent studies have focused on an inclusion of imaging doses using a radiation treatment planning (RTP) system. This paper d ... Full text Cite

SU‐GG‐J‐148: Evaluation of Performance of a Conceptual Time‐Resolved Proton Range Telescope for In‐Room Respiration Monitoring Using Monte Carlo Simulations and 4DCT Patient Data

Conference Medical Physics · January 1, 2010 Purpose: To demonstrate the feasibility to perform and optimize a time‐resolved proton range telescope (TRRT) in localization of moving lung tumors and quantification of proton range variations. Method: A TRRT is designed to detect transmission protons and ... Full text Cite

SU‐GG‐T‐404: Demonstration of the Ability to Morph an Existing Whole‐Body Phantom to a Different Individual

Conference Medical Physics · January 1, 2010 Purpose: Although patient‐specific partial‐body phantoms can be created from CT data, whole‐body phantoms are desired for the assessment of organ doses in CT, internal nuclear medicine and external‐beam radiation treatment procedures. This study proposes a ... Full text Cite

TH‐C‐201B‐10: Development and Testing of a CT Dose Software “VirtualDose” Using Anatomically Realistic Patient Phantoms: Preliminary Results for the Phase I of the Project

Conference Medical Physics · January 1, 2010 Purpose: To demonstrate the need and feasibility for developing a new software for reporting patient imaging dose who undergoing CT or PET/CT examinations. Method and Materials: Existing CT dose reporting software do not meet the need because of the simpli ... Full text Cite

WE‐E‐BRD‐02: Development of a Software for Integrating the Medical Accelerator Model with Patient Phantoms Into Monte Carlo Based Dosimetry Platform

Conference Medical Physics · January 1, 2009 Purpose: To develop a new software package that integrates the detailed medical accelerator model with anatomically‐realistic phantoms in the Monte Carlo engine, MCNPX, for the determination of secondary organ doses from secondary photons and neutrons duri ... Full text Cite

TU‐C‐304A‐01: The Need and Feasibility of a Modern Software for Reporting Patient Doses From CT Scans

Conference Medical Physics · January 1, 2009 Purpose: To demonstrate the need and feasibility to develop a modern software tool for reporting the organ dose and effective dose for patients undergoing CT examinations. Method and Materials: Existing CT dose reporting software do not meet the need becau ... Full text Cite

Benchmarking of SNAM with the ITER 3D model

Conference Fusion Engineering and Design · October 1, 2007 The discrete ordinates particle transport codes (SN codes) are widely used in reactor design, radiation shielding, nuclear detection and other fields. SN automatic modeling system (SNAM) is an integrated interface program between CAD systems and SN codes, ... Full text Cite

Update of ITER 3D basic neutronics model with MCAM

Conference Fusion Engineering and Design · November 1, 2006 In order to conduct nuclear analyses on neutronics issues for the International Thermonuclear Experimental Reactor (ITER), a standard three-dimensional (3D) neutronics model of the ITER reactor has been developed. However, the model for the Monte Carlo neu ... Full text Cite