About Rad At Hand
Rad At Hand is a free educational resource designed for radiology trainees, practicing radiologists, and medical professionals. The platform aims to deliver high-quality, interactive tools and guideline-based calculators that support clinical decision-making and structured learning.
Our tools cover a wide range of radiologic tasks, including:
- Solid organ evaluation: Volume calculations, parenchymal texture, and organ indices for the liver, spleen, kidneys, and more.
- ACR reporting systems for cancers: TI-RADS for thyroid nodules, O-RADS for ovarian masses, PI-RADS for prostate, and LI-RADS for liver lesions.
- Trauma scoring systems: AAST injury grading and AO Spine classification tools.
- CAD-RADS: Coronary Artery Disease Reporting and Data System calculators and reporting support.
- Vascular imaging tools: Including NASCET criteria for carotid stenosis, PESI score for pulmonary embolism, renal resistive index, and other hemodynamic indices.
- Incidentalomas: Guidance for incidental radiologic findings based on the latest American College of Radiology (ACR) white papers and consensus guidelines.
Rad At Hand also includes Radiology CaseBank, a free, interactive library of real-world imaging cases designed to build confidence and improve interpretation skills for residents and medical students.
About Dr. Pooyan Khalighinejad
Dr. Pooyan Khalighinejad is a neuroradiology fellow at Johns Hopkins University and a physician trained in diagnostic radiology and nuclear medicine. He completed his diagnostic radiology residency at UT Southwestern Medical Center, including a 16-month dual-board nuclear medicine training pathway.
Before residency, Dr. Khalighinejad was a postdoctoral researcher at the Advanced Imaging Research Center at UT Southwestern, where his work focused on molecular and functional MRI, including the development and application of zinc-responsive MRI contrast agents for imaging pancreatic beta-cell function and prostate physiology.
His academic and professional interests include:
- Neuroradiology and advanced neuroimaging
- Molecular and functional MRI
- Zinc-responsive MRI contrast agents
- Functional imaging of the pancreas and prostate
- Photon-counting CT and quantitative imaging
- Artificial intelligence in diagnostic imaging
- Radiology informatics, education, and clinical decision-support tools
Dr. Khalighinejad is the founder and developer of RAD at Hand, a radiology platform providing interactive calculators, structured reporting tools, and educational resources for radiologists and trainees. He has also developed Radiology CaseBank, the Radiology Calculators mobile app, and the Radiology Core QBank mobile app. RAD at Hand currently serves more than 20,000 unique users per month worldwide.
His research has resulted in peer-reviewed publications spanning molecular imaging, MRI contrast agents, prostate and pancreatic imaging, endocrinology, and other areas of clinical research. He has presented his work at national and international meetings including the Radiological Society of North America (RSNA), Society of Advanced Body Imaging (SABI), American Roentgen Ray Society (ARRS), and World Molecular Imaging Congress (WMIC).
His recognitions include the Best Project Award at SABI Tank for Radiology CaseBank, an Outstanding Scientific Presentation Award from SABI, and second place in the RSNA Resident Competition.
Selected Publications
- “Impact of dietary zinc on stimulated zinc secretion MRI in the healthy and malignant mouse prostate” — npj Imaging, 2024.
- “Investigations into the Signaling Pathways Involving Glucose-Stimulated Zinc Secretion (GSZS) from Prostate Epithelial Cells In Vitro and In Vivo” — Molecular Imaging and Biology, 2023.
- “Imaging β-cell function using a zinc-responsive MRI contrast agent may identify first responder islets” — Frontiers in Endocrinology, 2022.
- “MRI detection of glucose-stimulated zinc secretion in the enlarged dog prostate as a potential method for differentiating prostate cancer from benign prostatic hyperplasia” — Investigative Radiology, 2021.
- “Imaging tissue physiology in vivo by use of metal ion-responsive MRI contrast agents” — Pharmaceuticals, 2020.
- “MRI Methods for Imaging Beta-Cell Function in the Rodent Pancreas” — Type-1 Diabetes: Methods and Protocols, Humana Press, 2022.
- “Screening of congenital hypothyroidism in preterm, low birth weight and very low birth weight neonates: A systematic review” — Pediatrics & Neonatology, 2018.
- “A systematic review on the adverse health effects of di-2-ethylhexyl phthalate” — Environmental Science and Pollution Research, 2016.
Academic Profiles
- Google Scholar
- ORCID
- ResearchGate
Professional Profiles
- Doximity
- Twitter / X
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This page was last updated on September 20, 2026.