What is teleradiology? How remote radiology reporting works in India

What teleradiology is

Teleradiology is the electronic transmission of medical images from the place where they were acquired to a radiologist somewhere else, who interprets them and returns a signed report. The word is sometimes written as two words, tele radiology, and it means the same thing.

Every teleradiology service, whatever it calls itself, runs the same five-step pipeline.

1. Acquisition. A CT, MRI or X-ray unit produces a study in the DICOM format. The technologist records the patient’s details, the clinical question and, for CT and MRI, whether contrast was given.
2. Transmission. The scanner or the hospital’s PACS sends the DICOM study to the provider. Three transport methods are common in India: a small gateway device on the hospital network that forwards studies over an encrypted connection, a site-to-site VPN into the provider’s systems, or a manual upload through a browser when the first two are not available.
3. Interpretation. A radiologist who is registered with a State Medical Council or the National Medical Commission opens the full study in a diagnostic viewer, reads it alongside the clinical history and any prior studies, and writes the findings and impression.
4. Signing. The radiologist signs the report. The signed report carries the radiologist’s name, qualification, registration number and council, so that the referring clinician can verify who read the study.
5. Delivery. The report returns to the hospital as a PDF through a portal, email or WhatsApp, and, where the hospital has the integration, into its own PACS or RIS.

Teleradiology is not telemedicine. Telemedicine is a consultation between a doctor and a patient; teleradiology is a service from a radiologist to a referring hospital, and the patient is rarely part of the exchange. The distinction matters in India because the national telemedicine guidelines cover the first and are silent on the second, as the rules section explains.

Why hospitals in India use it

Hospitals in India use teleradiology because there are not enough radiologists, and the ones that exist are in the wrong places. India has roughly 20,000 to 22,000 practising radiologists for about 1.4 billion people, and 70 to 80 percent of them work in tier-1 metros.¹ A tier-2 or tier-3 hospital that advertises a radiologist post reports a search of 6 to 18 months, and a permanent radiologist costs ₹9 to 25 lakh a year.¹

Even a hospital with one radiologist has a night problem. One person cannot cover a CT scanner 24 hours a day, so casualty scans at 2 AM either wait until morning or go to a remote reader. That night-and-weekend gap is the most common reason a hospital signs its first teleradiology contract; full outsourcing usually comes later.

The market reflects this. IMARC estimates the Indian teleradiology market at ₹3,812.8 crore in 2025, growing to ₹34,391.9 crore by 2034 at a compound annual rate of 23.71 percent.² That growth comes from the district hospitals, diagnostic centres and state health missions that lack readers, not from the metros. The radiologist shortage guide goes through the figures in more detail.

The three models in India

There are three ways an Indian teleradiology provider can be organised, and the model determines who reads your study, how it gets to them and what you pay. Ask a provider which model it runs before you ask about price.

The open pool is the model most often proposed and least often delivered. Nobody in a pool owns the STAT head CT at 3 AM, easy cases get picked first, and there is no way to guarantee that the reader is credentialed for that hospital. The managed network keeps the flexibility of independent radiologists but puts routing, credentialing and the service-level clock under the operator’s control. That is the model Raydiac runs; the for hospitals page describes it step by step, and the companies guide compares the named providers.

What it costs

Published Indian prices to hospitals are in the low hundreds of rupees per study. 5C Network publishes X-ray at ₹80 to 200, CT at ₹250 to 500 and MRI at ₹400 to 600, with a STAT surcharge of 20 to 40 percent.³ Krsnaa Diagnostics lists indicative volume-linked rates of ₹40 for X-ray, ₹350 for CT and ₹650 for MRI.⁴

These prices sit close to, and sometimes below, what the Indian Radiological and Imaging Association says a radiologist should be paid. The IRIA minimum charges circular of April 2024 sets a floor of ₹300 for a CT brain, ₹500 for a CT abdomen and ₹400 for an MRI brain or spine, or 10 percent of the gross scan charge, whichever is higher.⁵ A hospital price of ₹250 for a CT therefore leaves nothing for the platform unless the radiologist is paid below the IRIA floor or the provider makes its margin elsewhere. The pricing guide sets out the full IRIA table, the tax treatment and a worked example.

What the rules say

No Indian statute or NMC regulation addresses teleradiology directly as of September 2026. What exists is a set of adjacent rules that a hospital and a provider must both satisfy.

• The Telemedicine Practice Guidelines 2020 govern consultations by registered medical practitioners over text, audio and video, and allow them across the whole country. They do not mention radiology or diagnostic reporting.⁶
• The NMC’s RTI reply of 3 January 2025 stated that the guidelines do not permit a practitioner to sign pathology and radiology reports through remote authentication without physical presence and supervision, and that the guidelines do not address the question.⁷ That reply is about ghost-signing: putting a name to a report the signatory did not produce. A registered radiologist who personally interprets the images and signs their own report is doing something different, and nothing in the reply prohibits it.
• State registration is a grey area. Medical registration in India is with a State Medical Council, and a radiologist in Karnataka reading for a hospital in Punjab is relying on the national portability that the NMC Act intends. The National Medical Register opened in August 2024, and a draft amendment notified on 11 August 2026 proposes a national Unique ID; about 1,800 doctors had completed NMR registration by December 2025 with about 30,000 pending.⁸
• The DPDP Act 2023 and the DPDP Rules 2025 apply to the patient data in every study. The Rules were notified on 14 November 2025 and phase in over 18 months, with the security, breach-notification and erasure obligations due around May 2027.⁹ The hospital is the data fiduciary; the reporting provider is its processor and needs a written contract.

The regulations guide covers each of these in detail, along with AERB licensing and the PC-PNDT restrictions on ultrasound, and the DPDP guide sets out the timetable.

Quality and safety

A remote report is as safe as the process around it. The ACR White Paper on Teleradiology Practice sets the expectations that have become the reference standard: the reader must have access to prior studies and clinical context, critical results must be communicated with an audit-trailed acknowledgement, there must be a discrepancy process with a route to overreads and addenda, and turnaround should be neither more nor less stringent than for on-site radiology.¹⁰

Peer review is how a provider proves its error rate rather than asserts it. In mature RADPEER programmes, about 0.7 percent of reviewed reports are scored as discrepant and about 0.4 percent as clinically significant.¹¹ A provider that cannot tell you its discrepancy rate does not measure it. The peer review guide explains the scoring, and the turnaround guide covers how STAT and critical-results workflows should be timed and recorded.

Benefits and limitations

Teleradiology solves a coverage problem. It does not solve every problem, and a hospital should go in with both lists.

What it does well

• Covers nights, weekends and leave without a second salaried radiologist.
• Gives a hospital with no radiologist a signed report on every CT and MRI.
• Converts a fixed annual salary into a per-study cost that scales with volume.
• Makes subspecialty opinions available to a district hospital that could never employ a neuroradiologist.

Where it falls short

• The radiologist cannot walk to the scanner, examine the patient or ask the technologist to repeat a sequence in real time.
• Report quality depends on the clinical history the hospital sends. A blank history produces a vague report.
• Ultrasound, which is operator-dependent, does not travel well and obstetric ultrasound is legally tied to the registered place.
• Marketing turnaround claims are averages; the contract is what a hospital can enforce.
• A provider that goes down, or a radiologist who does not answer, leaves the hospital without a reader unless there is a backup route.

How to choose a provider

Ask for evidence, not assurances.

1. Credentialing evidence. Each reporting radiologist’s degree, council registration number and indemnity, verified against the Indian Medical Register, and a written statement that the named radiologist personally interprets each study. The NMC verification guide shows how to check a registration yourself.
2. Service levels in writing. A target per priority, how it is measured, and what happens when it is missed. Service credits are a sign the provider expects to be held to it.
3. Data residency. Where images and reports are stored, whether any patient data goes to a foreign service, and how long images are retained.
4. A data processing agreement that names the hospital as data fiduciary and sets out the processor’s obligations under the DPDP Rules 2025, including breach notification.
5. Lock-in. The contract term, minimum volumes and exit notice. A 12 to 24 month term with minimums is common; a monthly term is not.
6. Report format. A sample report showing the sections, the measurements and the signature block, and confirmation that the signature is a verifiable electronic signature rather than a pasted image.
7. Critical results process. Who is called, on what number, within what time, and how the call and acknowledgement are recorded.

Figures in this guide are dated and attributed. Provider prices and turnaround times are the providers’ own published claims, not independently verified by Raydiac.