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Heart Rhythm Doctor ⚡

Heart Rhythm Doctor ⚡Heart Rhythm Doctor ⚡Heart Rhythm Doctor ⚡
  • Home
  • About
  • Biography
  • Heart Rhythm Disorders
  • Services
  • Publications
  • Photo Gallery
  • Imaging
  • EP
  • Contact Us
  • Cardiac Amylodosis
Rajin Choudhury, 
Cardiac ElectrophysiologistVeritas Precision Medical Technologies: MedicalCTools c

Cardiology Simulators, Apps & Clinical Calculators

Cardiology Simulators, Apps & Clinical CalculatorsCardiology Simulators, Apps & Clinical CalculatorsCardiology Simulators, Apps & Clinical Calculators

EP, CIED, ventilator and nuclear cardiology simulators, apps and 50+ free calculators by MedicalCTools.

Explore MedicalCTools
Subscribe to Simulators
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Built by a Cardiac Electrophysiologist

Dr. Rajin Choudhury is an internist, cardiologist and cardiac electrophysiologist. Through Veritas Precision Medical Technologies Inc. he builds MedicalCTools: evidence-based simulators, apps and calculators that let trainees and clinicians practise EP studies, pacemaker and ICD interrogation, ventilator management and nuclear cardiology reading, with every tool referenced to current guidelines.

About Dr. Choudhury

Cardiology Simulators & Trainers

EP Study Intracardiac EGM Simulator

EP Study Intracardiac EGM Simulator
EP Study Intracardiac EGM Simulator
EP study intracardiac electrogram simulator by MedicalCTools

86 EP-study scenarios with surface ECG, HRA, His, CS and RV electrograms: SVT and VT differentials, pacing manoeuvres, entrainment and on-screen calipers.

Open EP Simulator

CIED EGM Trainer

EP Study Intracardiac EGM Simulator
EP Study Intracardiac EGM Simulator
CIED pacemaker and ICD electrogram trainer by MedicalCTools

Pacemaker, ICD, CRT, conduction-system and leadless pacing electrograms with marker channels, interrogation and troubleshooting cases.

Open CIED Trainer

Mechanical Ventilator Simulator

EP Study Intracardiac EGM Simulator
Mechanical Ventilator Simulator
Mechanical ventilator simulator with live waveforms by MedicalCTools

Live pressure, flow and volume waveforms, 20 ICU scenarios, inspiratory and expiratory holds, lung mechanics and lung-protective ventilation practice.

Open Ventilator Simulator

Nuclear Cardiology Tools

Mechanical Ventilator Simulator
MedicalCTools nuclear cardiology tool: myocardial flow reserve, MUGA and SPECT/PET comparison

Myocardial flow reserve and coronary flow capacity, MUGA, SPECT and PET image comparison and wall-motion scoring for Rb-82 PET, SPECT and FDG viability reading.

Open Nuclear Tools

The Coronary Tool

The Coronary Tool app by MedicalCTools: multimodality coronary comparison bullseye

One patient, every test: echo, cardiac MRI, coronary CT, nuclear cardiology and angiography on one comparison bullseye, with SYNTAX scoring and PCI or CABG planning.

Get The Coronary Tool

Transseptal Puncture Simulator

Transseptal puncture simulator by MedicalCTools

Step-by-step transseptal access: fluoroscopy landmarks, ICE and TEE tenting, needle pressure, contrast staining and wire position.

Open Transseptal Simulator

Free Tools, Apps & Subscriptions

50+ Free Clinical Calculators

50+ Free Clinical Calculators
50+ Free Clinical Calculators

CHA2DS2-VASc, HAS-BLED, QTc, GRACE, Wells, CURB-65 and many more for cardiology and internal medicine, each with interpretation and guideline references.

Open Calculators

Free iOS & Android Apps

50+ Free Clinical Calculators
50+ Free Clinical Calculators

The Coronary Tool, MedicalCTools, CIED EGM Trainer, Intracardiac EGM Simulator, Trans-Septal Access Trainer, PVC Origin Locator, CAD PreTest and AutoNova.

See All Apps

Simulator Subscriptions

50+ Free Clinical Calculators
Study References for Exams

EP, CIED and ventilator simulators: US$6.90 a month or $66.90 a year each. Nuclear cardiology tools: $9.99 a month or $75.90 a year. Cancel anytime.

View Plans

Study References for Exams

Veritas Precision Medical Technologies Inc.
Study References for Exams

ECG criteria atlas, wide-complex tachycardia, accessory pathway localisation, paced ECG troubleshooting, ventilator modes and echo grading, with US, European, UK and Canadian guidelines side by side.

Browse References

Free Echo & POCUS Demos

Veritas Precision Medical Technologies Inc.
Veritas Precision Medical Technologies Inc.

Probe-position and view-orientation trainers for echocardiography and point-of-care ultrasound (eFAST, RUSH, BLUE). Real echo cine loops coming soon.

Try the Echo Demo

Veritas Precision Medical Technologies Inc.

Veritas Precision Medical Technologies Inc.
Veritas Precision Medical Technologies Inc.

MedicalCTools and Veritas Precision are business names of Veritas Precision Medical Technologies Inc., Ontario, Canada. Educational tools only; not medical devices.

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Beating with Passion: A Visual Journey

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Copyright © 2019-2026 Dr. Rajin Choudhury, Heart Rhythm Doctor. MedicalCTools and Veritas Precision content © 2026 Veritas Precision Medical Technologies Inc. All rights reserved.

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