7453-Ai, Huisi

Huisi Ai, PhD

Assistant Professor of Clinical Radiation Oncology

535 Barnhill Drive, Suite RT 041

Indianapolis, IN 46202


Dr. Ai received his Bachelors of Science degree in Electrical Engineering from the Shanghai Jiaotong University in China. He then obtained his Masters of Science in Electrical Engineering here in Indiana at Purdue University. Dr. Ai obtained his Ph.D. in Medical Physics from the School of Health Sciences at Purdue University. Following this he completed his internship in Medical Physics in the Department of Radiation Oncology, Indiana University School of Medicine. He also completed an internship in MRI QA through the Department of Radiology and Imaging Science, Indiana University School of Medicine. Dr. Ai is board certified in Therapeutic Radiologic Physics. 

Key Publications

Karmazyn B, Ai H, Klahr P, Ouyang F and Jennings G. How Accurate is size specific dose estimate in pediatric body CT examinations? Pediatric Radiology 2016 46(9) 1234-1240

Karmazyn B, Ai H, Liang Y, Klahr P, Eckert GJ and Jennings SG. Effect of body size on dose reduction with longitudinal tube current modulation in pediatric patients. AJR Am J Roeentgenol 2015 Apr; 204(4):861-4

Birch SM, Lenox MW, Kornegay JN, Shen L, Ai H, Ren X, Goodlett CR, Cudd TA and Washburn SE. Computed tomography assessment of peripubertal craniofacial morphology in a sheep model of binge alcohol drinking in the first trimester. Alcohol 2015 Nov; 49(7):675-89

Titles & Appointments

  • Assistant Professor of Clinical Radiation Oncology
  • Education
    2013 PhD Purdue University
    2009 MS Indiana University-Purdue University Indianapolis
    2007 BS Shanghai Jiao Tong University
  • Research

    •  Micro-CT and MRI imaging for morphologic diagnosis in small animal model

    •  Hybrid iterative reconstruction in pediatric CT imaging

    •  MRI phase contradt flow quantificationQuality assurance

    •  Image guided radiation therapy (IGRT) to improve efficacy of radiation therapy

    •  Sterotactic body frame radiation therapy (SBRT)

    •  Functional and molecular imaging of tumor physiology and biology for oncology     applications

    •  Functional CT imaging of polycystic kidney disease (PKD)


  • Professional Organizations
    American Association of Physicists in Medicine (AAPM)
  • Board Certifications
    American Board of Radiology - Medical Physics*
  • Clinical Interests

    Intensity Modulated Radiation Therapy (IMRT) and RapidArc planning and QA, Treatment planning in 2D and 3D with Varian Eclipse TPS, Treatment machine calibration, operation, and QA: Varian True Beam, Trilogy, Clinac IX and 2100 CD; Elekta Leksell Gamma Knife Perfexion and C models Gamma Knife treatment planning with Leksell GammaPlan, Machine acceptance and commission: Varian True Beam and RapidArc upgrade for Clinac iX, Beam data acquisition and analysis; PTW MP3 and Sun Nuclear 3D scanner, Nucletron Microselection HDR machine calibration, operation and QA, High dose rate brachytherapy: Elekta Oncentra Brachy and Varian BrachyVision HDR treatment planning: GYN: single channel vaginal cylinder (SCVA), multi-channel vaginal cylinder (MCVA) and tandem and ovoid (T/O) applicators; partial breast: SAVI; transrectal ultrasound guided prostate brachytherapy, mage guided radiation therapy: Operation and QA of Varian On-Board Imager, Electronic Portal Imaging Detector (EPID), Cone-beam CT, Treatment simulation: operation and QA of Nucletron Simulator and Philips Brilliance Big Bore 4DCT, SRS/SBRT Simulation, planning and treatment setup, Special procedures: TBI, Total skin electron therapy



Looking for patient care?

To schedule an appointment with a faculty member physician of IU School of Medicine, contact Indiana University Health at 888-484-3258 or use the physician finder by clicking the button below.

Find a doctor