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For HMOs

The claim says the ECG showed a problem, and you have a photo

An HMO (a health maintenance organisation) is the company that pays for its members' care. When a claim includes an ECG, what reaches you may be a phone photo of a printout. TraceRead gives your medical officer an AI first read of that photo, to compare with what the claim says.

Who
The medical officer checking a claim that includes an ECG
Their moment
A claim says the ECG showed a problem, and all you have is a photo of the printout.
What they get
An AI first read of that photo, so your medical officer can compare what the tracing shows with what the claim says.

TraceRead does not decide a claim

It does not pay, refuse or score a claim, and it does not tell you whether a claim is true. It shows what the tracing shows, so a qualified doctor on your team can compare it with the claim. Every AI first read is for that doctor to check.

What changes

What changes for you

Four things change for the medical officer with a claim in front of them. The numbers behind them are further down this page.

01

Something to compare the claim with

Your medical officer gets the rebuilt trace, the measurements (heart rate, PR interval, QRS, QT, QTc and heart axis) and the patterns TraceRead AI sees, each with a score from 0 to 100, to set beside what the claim says.

02

The photo stays in view

The rebuilt trace is drawn back over the photo as a red line, so the medical officer checks it against the page and sees which parts of each lead the paper shows.

03

A poor photo gets no read

When the page is not found, or the rebuilt trace looks unreliable, TraceRead gives no AI first read and asks for a new photo. It does not guess.

04

Member details stay off the photo

Before a photo is sent, the header, where the machine prints the person's details, is covered with a box on the phone. TraceRead asks for no names, only age and sex.

Words used on this page

12 lead ECG
The standard ECG: 12 views of the heart's electrical activity, printed as 12 wavy lines.
Rebuilt trace
The digital line TraceRead makes from the photo, drawn back over the paper so a doctor can compare the two.
Pattern
Something TraceRead AI sees on the tracing. It is not a finding that the patient has a disease.
Score
How strongly TraceRead AI sees a pattern, from 0 to 100. It is not the chance that the patient has a disease. Each pattern has its own flag line, set on other ECGs so that patterns are not missed.
PR interval
The time from the start of the upper chambers' beat to the start of the lower chambers' beat.
QRS
How long the main beat of the lower chambers lasts.
QT and QTc
The time the lower chambers take to beat and recover. QTc is the QT corrected for heart rate.
Heart axis
The main direction of the heart's electrical activity, in degrees.

Your day

How it fits your day

Your claims process stays as it is. Four steps follow.

  1. Step 1

    A claim arrives with an ECG photo

    From the clinic or diagnostic centre, as it always does.

  2. Step 2

    The photo goes through TraceRead

    Someone on your team sends it through the capture app, which runs in a phone's web browser, after covering the header where the machine prints the person's details.

  3. Step 3

    TraceRead AI makes the first read

    It finds the page, rebuilds the 12 tracings, measures them and lists the patterns it sees. If the page is not found or the rebuilt trace looks unreliable, there is no AI first read.

  4. Step 4

    Your medical officer compares

    A qualified doctor on your team compares the AI first read with what the claim says, and decides what to do. TraceRead does not decide the claim.

The numbers

What we measured

Each number says how many ECGs it was measured on and where it came from. They come from public research ECGs and from photos made by computer, not from patients at a clinic.

0.908

median match between the rebuilt trace and the original recording

Measured on 500 photos made by computer of printed PTB-XL test ECGs. Source: Spike S1.

99.0%

page layouts read correctly

Measured on 500 photos made by computer of printed PTB-XL test ECGs. Source: Spike S1.

7 of 500

photos where the page was not found, so no first read was given

Measured on 500 photos made by computer of printed PTB-XL test ECGs. Source: Spike S1.

5.9%

photos held for a retake because the rebuilt trace looked unreliable

Measured on 500 photos made by computer. Source: Spike S3.

0.902

how well 71 patterns are told apart (AUROC, where 1.00 is perfect and 0.50 is a coin toss)

Measured on 2,198 PTB-XL test ECGs (fold 10), original recordings. Source: Spike S2.

0.009

drop in that score when TraceRead AI reads photos made by computer instead of the original recordings

Measured on 500 PTB-XL test ECGs, photos made by computer. Source: Spike S3.

These are engineering measurements, not clinical claims. The page on how TraceRead AI works shows every step of a real run with its numbers. See the evidence

Features

The features you use

TraceRead has ten named features. These six are the ones that matter when the photo comes from someone else.

Page finder

Read

TraceRead AI finds the four corners of the paper and how it is turned, even in a photo taken at an angle.

What code checks
The printed millimetre grid is then measured to fix the scale and tilt, and to tell A4 from US Letter paper.
What a person does
If no page is found, the technician is asked for a new photo.

Trace rebuild

Read

TraceRead AI follows the ink of every lead and rebuilds it as a digital signal, 500 points a second.

What code checks
The rebuilt line is drawn back over the paper. On 500 photos made by computer it matched the original recordings at a median of 0.908.
What a person does
The doctor compares the red line with the paper.

Coverage map

Read

Marks exactly which seconds of each lead the paper shows, because most printouts show each lead for only 2.5 seconds.

What code checks
The pattern finder reads the signal and the coverage map together, so a missing part is never treated as a flat line.
What a person does
The doctor sees which parts were read.

Hold for retake

Read

When the rebuilt trace looks unreliable, TraceRead gives no first read and asks for a new photo.

What code checks
A fixed rule looks at the calibration pulses, the layout match and cut leads. It held 5.9% of 500 photos made by computer.
What a person does
The technician retakes the photo.

Pattern finder

Interpret

TraceRead AI checks the tracing for 71 patterns of rhythm, conduction, thickened heart muscle and ST and T changes, each with a score from 0 to 100.

What code checks
Scored on 2,198 public test ECGs it never trained on (0.902 across all 71), and on 45,152 ECGs from China.
What a person does
The doctor keeps, edits or removes each pattern.

Header cover

Capture

Before sending, the technician drags a box over the printed header where a machine prints the patient's details.

What code checks
The box is painted into the photo on the phone, so the covered part never leaves it.
What a person does
The technician chooses what to cover.

Safety

A doctor checks every AI first read

TraceRead helps a doctor read an ECG. It does not stand in for one.

An AI first read is not the last word.

  • A qualified doctor reviews every AI first read. Nothing reaches a patient until a doctor signs it.
  • Do not rely on TraceRead alone in an emergency.
  • A normal AI first read does not rule out heart disease.
  • For adults, 18 and over.

Pricing

What it costs

HMOs and groups get one volume price across all their sites, priced per AI first read. Talk to us for it. Prices are in naira, with dollars as approximate.

HMOs and groups

Volume pricefor many sites

priced per AI first read

Pay as you go

₦1,500per AI first read

about $1.10

Dollar figures are approximate, at ₦1,370 to the dollar.

Questions

Questions people ask

What do we get back for a photo?

An AI first read: the rebuilt tracing drawn over the photo, the measurements and the patterns TraceRead AI sees, each with a score from 0 to 100, and a map of which parts of each lead the paper shows. It is for a qualified doctor to review.

Does TraceRead decide whether a claim is valid?

No. It does not pay, refuse or score a claim. A qualified doctor on your team compares the AI first read with the claim and decides.

What if the photo is poor?

When the page is not found or the rebuilt trace looks unreliable, TraceRead gives no AI first read and asks for a new photo. In testing it held 5.9% of 500 photos made by computer.

Which ECGs can it read?

Printed 12 lead ECGs from adults (18 and over), at the usual 25 mm a second and 10 mm per millivolt, laid out as 3x4, 6x2 or 12x1, on A4 or US Letter paper. Photos of monitor screens, rhythm strips on their own and ECGs from children are not supported.

Where is member data kept?

Patient data stays in the AWS Cape Town region, and it is never sent to an outside AI service. TraceRead needs only age and sex, never a name, and the header is covered on the phone before the photo is sent. TraceRead staff cannot see patient data by default. The HMO is the data controller, and TraceRead signs a data processing agreement with each customer.

See it read an ECG from a photo

We show TraceRead reading public research ECGs, and talk through how claims with ECGs reach your medical officers.