ProSPective Evaluation of Non-contrast sINe spiN Flat-dEtectoR CT for the Detection of Intracranial hemorrhageS (SPINNERS)

University Hospital Basel

Status: Enrolling

Conditions: Stroke

Treatments: Diagnostic Test: Non-contrast syngo DynaCT Sine Spin head scan and application software; Diagnostic Test: Non-contrast cranial MDCT head scan

Study type: Interventional

Funder types: Other

Identifiers

NCT05458908

qu20Psychogios_SPINNERS

Details and patient eligibility

About

Stroke is one of the leading causes of mortality and disability worldwide. Optimization of intra-hospital pathways is as of today one of the most promising research topics in stroke treatment. A potential solution to shorten the time needed for current workflows, and therefore reperfusion, is to do both imaging and subsequent endovascular therapy (EVT) in the angiography suite using non-contrast syngo DynaCT Sine Spin (FDCT) for the exclusion of intracranial hemorrhage and flat detector CT angiography (FDCTA) or digital subtraction angiography for diagnosis of LVO. It is still a matter of debate if FDCT can reliably differentiate between ischemic and hemorrhagic stroke.

This study aims to investigate if non-contrast syngo DynaCT Sine Spin imaging is non-inferior to non-contrast MDCT imaging regarding its sensitivity and specificity for the detection of intracranial hemorrhages.

Full description

Despite concerted efforts, stroke is still one of the leading causes of mortality and disability worldwide.Stroke can be divided into two main types: ischemic and hemorrhagic stroke. Endovascular therapy (EVT) became the gold-standard for the treatment of acute ischemic stroke due to large-vessel occlusions (LVO). However, as was shown by a post-hoc meta-analysis of five trials clinical outcome is highly associated with the time from hospital admission to treatment.

One possibility to substantially shorten this time span is the implementation of a One Stop Management approach. In this workflow both imaging and subsequent EVT is done in the angiography suite using non-contrast flat detector CT (FDCT) for the exclusion of an intracranial hemorrhage. Such workflows dramatically reduce intra-hospital time delays (median reductions of more than 30 minutes) and are associated with improved patient outcomes. One of the biggest hurdles for a large-scale implementation of a One Stop Management approach up to now is the ability to differentiate between ischemic and hemorrhagic stroke with FDCT. In a recent study we have reported very high sensitivity and specificity for the detection of intracranial hemorrhage with FDCT.

Recently Siemens Healthineers introduced the new ARTIS icono angiography system with a new non-contrast syngo DynaCT Sine Spin protocol FDCT, which should improve the quality and soft tissue resolution of native cranial FDCT scans especially in the posterior fossa and skull base. Therefore, the study aims to evaluate if non-contrast syngo DynaCT Sine Spin FDCT is non-inferior to non-contrast multidetector CT (MDCT) for the detection of intracranial hemorrhages.

Enrollment: 252 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Informed Consent as documented by signature or fulfilling the criteria for emergency or deferral consent
• Patients with symptoms suggestive of ischemic stroke (NIHSS ≥ 7) or suggestive of haemorrhagic stroke with a cranial non-contrast MDCT and a feasible non-contrast syngo DynaCT Sine Spin within 4 hours
• Patient presenting within 24 hours of last seen well
• Patients presenting directly to the treating hospital (i.e. mothership patients) OR transfer patients with the indication for repeated imaging according to the standard operation procedures of the treating hospital
• Age above 18 years
• Agreement of treating physician to perform non-contrast syngo DynaCT Sine Spin

Exclusion criteria

• Severe metal artifacts on initial MDCT imaging
• Planned invasive interventions between MDCT and FDCT scan
• Clinical deterioration between MDCT and FDCT scan (i.e. an increase of the NIHSS of more than 4 points)
• Evidence of an ongoing pregnancy prior to enrollment. A negative pregnancy test before enrollment is required for all women with child-bearing potential

Trial design

Primary purpose: Diagnostic

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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252 participants in 1 patient group

Cranial non-contrast syngo DynaCT Sine Spin scan

Experimental group

Description:

There is only one arm as all patients undergo the same intervention. Subjects with clinical features/symptoms of a stroke (hemorrhagic and non-hemorrhagic stroke patients) will be enrolled. All patients will undergo first a non-contrast MDCT scan and then a non-contrast syngo DynaCT Sine Spin head scan within a maximum timespan of 4 hours between both scans. Only patients in which no invasive procedure in between is planned can be enrolled.

Treatment:

Diagnostic Test: Non-contrast cranial MDCT head scan

Diagnostic Test: Non-contrast syngo DynaCT Sine Spin head scan and application software