Head CT scan Interpretation and Triage aid *

qER includes a triage aid to prioritize and notify critical head CT scans, a TBI progress monitoring tool, and a reporting assistance mode that that pre-populates radiologist templates.

qER is CE certified.

Clinical Applications

Mobile notifications for critical scans

Notification with non-diagnostic preview image

Mobile Notifications for Critical Studies

Radiologists and emergency care clinicians are alerted by a 'Telegram' notification as soon as a head CT scan with a critical abnormality is detected. The notification, coupled with non-diagnostic preview images sent to treating physicians’ mobile phones helps ensure that scans are reviewed as soon as possible.

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Study Prioritization

AI-generated priority status displayed on the worklist

Prioritize critical studies on the worklist

Radiology worklists can prove complex to manage, especially in tele-radiology settings or imaging centers with high scan volume. ‘STAT’ designations coded at the time of ordering the CT scan don’t always reflect the degree of severity of the abnormality on the image.

The qER prioritization tool helps meet stroke and trauma reporting standards and maintain consistent turn-around times for critical abnormalities.

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Reporting

Full text report that pre-fills the the radiology template

Pre-populate Head CT Scan reports

A full text description on the abnormalities is generated and used to pre-populate the radiology reporting template, saving dictation time. The text includes the name and nature of at the abnormality detected, its anatomical location within the brain, as well as its severity and extent.

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Clinical Monitoring

Precise volume quantification for follow-up scans

Monitor Traumatic Brain Injury and other Conditions

Qure.ai's deep learning algorithms quantify the volume of intracranial bleeds, infarcts and brain ventricles at a level of precision that surpasses radiologists.

This capability is used by clinicians to track the progress of patients with traumatic brain injury, infarcts and hydrocephalus and by researchers to develop new quantitative outcome measures.

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Product Capability

Qure.ai’s deep learning algorithms detect, localise and quantify a growing list of brain pathologies including intra-cerebral bleeds and their subtypes, infarcts, mass effect, midline shift, and cranial fractures.

Extradural hemorrhage
Extradural hemorrhage
Subdural hemorrhage
Subdural hemorrhage
Intraparenchymal hemorrhage
Intraparenchymal hemorrhage
Intraventricular hemorrhage
Intraventricular hemorrhage
Infarct
Infarct
Infarct
Infarct
Cranial fracture
Cranial fracture
Cranial fracture
Cranial fracture
Pneumocephalus
Pneumocephalus
Hydrocephalus
Hydrocephalus
Midline shift
Midline shift
Atrophy
Atrophy
Extradural hemorrhage

Extradural hemorrhage

Detects, localizes and quantifies the 5 types of intracranial bleeds, and reports their subtype, anatomic location and volume.
Intraparenchymal hemorrhage

Subdural hemorrhage

Detects, localizes and quantifies the 5 types of intracranial bleeds, and reports their subtype, anatomic location and volume.
Intraparenchymal hemorrhage

Intraparenchymal hemorrhage

Detects, localizes and quantifies the 5 types of intracranial bleeds, and reports their subtype, anatomic location and volume.
intraventricular hemorrhage

Intraventricular hemorrhage

Detects, localizes and quantifies the 5 types of intracranial bleeds, and reports their subtype, anatomic location and volume.
Infarcts

Infarct

Detects infarcts from the time of appearance of a well defined hypodense lesion — about the same time they can be reliably noted by a radiologist. qER detects and localizes acute, subacute and chronic infarcts, including lacunar infarcts.
Infarcts

Infarct

Detects infarcts from the time of appearance of a well defined hypodense lesion — about the same time they can be reliably noted by a radiologist. qER detects and localizes acute, subacute and chronic infarcts, including lacunar infarcts.
Cranial fracture

Cranial fracture

Detects fractures, localizes them with a bounding box on the image, and names the cranial bone(s) affected.
Cranial fracture

Cranial fracture

Detects fractures, localizes them with a bounding box on the image, and names the cranial bone(s) affected.
Pneumocephalus

Pneumocephalus

Detects pneumocephalus, or the presence of air in the cranial cavity, an infrequent occurrence associated with head trauma or neurosurgery.
Hydrocephalus

Hydrocephalus

Quantifies brain ventricle volume, and cranial vault volume. Both these volumes, and their ratio are presented to the user or pre-filed in the report template, along with the reference range for age and gender.
Midline shift

Midline shift

Detects and quantifies midline shift on head CT scans.
Atrophy

Atrophy

qER identifies scans with generalized or localized cerebral atrophy, useful for the assessment of neurodegenerative disease.

Peer-reviewed Validation study

In October 2018, a study validating Qure.ai's head CT scan algorithms was published in The Lancet, evaluating performance on detecting intracranial bleeds, fractures, mass effect and midline shift.

The study measured algorithm accuracy versus a 3-radiologist majority on 500 scans and an additional 25,000-scan validation dataset, showing that qER is able to detect these critical abnormalities with near-radiologist accuracy.

We have made the CQ500 dataset publicly available so that others can test their algorithms and build upon our results. We provide anonymized dicoms and the corresponding radiologist reads for the published validation set.

Accuracy Rates

The list of abnormalities that the deep learning algorithms can detect has grown since the results were first published in The Lancet, and algorithm accuracy is now even higher.

The accuracy of each algorithm is reported individually below, using radiologist opinion as ground truth. By altering the detection threshold, each algorithm can be operated at either a high-sensitivity or high-specificity operating point depending on the clinical setting.

Abnormal finding AUC (Confidence interval) Operating point 1 (sensitive) Operating point 2 (specific)
Sensitivity Specificity Sensitivity Specificity
Intracranial haemorrhage (all 5 types) 0.95 (0.95 - 0.96) 0.9 0.89 0.85 0.96
Intraparenchymal haemorrhage 0.95 (0.94 - 0.96) 0.9 0.86 0.85 0.93
Subarachnoid hemorrhage 0.95 (0.94 - 0.96) 0.9 0.89 0.85 0.93
Subdural hemorrhage 0.96 (0.95 - 0.97) 0.9 0.89 0.84 0.95
Extradural hemorrhage 0.97 (0.96 - 0.98) 0.95 0.87 0.9 0.93
Intraventricular haemorrhage 0.98 (0.97 - 0.99) 0.95 0.91 0.9 0.97
Infarct 0.95 (0.94 - 0.95) 0.9 0.85 0.8 0.93
Cranial Fracture 0.92 (0.91 - 0.93) 0.9 0.75 0.8 0.92
Midline Shift 0.96 (0.95 - 0.97) 0.9 0.94 0.9 0.94
Mass Effect 0.9419 (0.93 - 0.95) 0.9 0.86 0.8 0.95
Atrophy 0.92 (0.91 - 0.92) 0.9 0.79 0.8 0.86

Media Coverage

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