Normalized CT perfusion maps from 62 SAH patients

Aneurysmal subarachnoid hemorrhage (SAH) is a severe condition that triggers numerous metabolic disruptions and complications. While the exact mechanisms implied in this cascade of events are still being investigated, monitoring cerebral perfusion seems critical to understand and prevent the occurrence of secondary deficits such as delayed cerebral ischemia (DCI).
The present dataset was built within the framework of a retrospective observational study in SAH patients.
Sixty-two patients were included. Clinical information at admission, aneurysm details, neurological events, and rescue treatments were collected. Of note, within this study population, 33% of patients were classified as WFNS III-V. Cerebral vasospasm (CVS) occurrence was 68%, and that of DCI was 15%.
Overall, 873 CT perfusion parametric maps (TMAX, MTT, CBF) were collected and preprocessed. In particular, all data were normalized to the MNI (Montreal Neurological Institute) standardized space that allows precise within an..., , , # Normalized CT perfusion maps from 62 SAH patients

[https://doi.org/10.5061/dryad.0zpc86784](https://doi.org/10.5061/dryad.0zpc86784)

#### CONTRIBUTORS:

-Alexandre Kobbai

-Quentin Mesnildrey (corresponding author: [[e-mail]](mailto:[e-mail]))

-Vivien Szabo

-Kévin Chalard

#### RESEARCH SCOPE:

Evolution of cerebral perfusion in patients diagnosed with aneurysmal subarachnoid hemorrhage.

#### Description of the data and file structure

This dataset includes:

873 preprocessed CT perfusion maps (TMAX, CBF, MTT) acquired in 62 patients diagnosed with aSAH.

Data were initially acquired using GE Medical Systems device (24-slice scanner, GE Healthcare, Milwaukee, Wisconsin) with a slice thickness of 5mm.

Parametric maps were computed using Perfusion_4D software (General Electric, revo_ct_22bc.50). The basilar artery was manually selected as the arterial input function and the venous outflow was automatically determined by the..., The present dataset does not contain any patient-related information. Subject identifiers are arbitrary; name, sex, and date of exam were removed from the metadata. Exam dates provided in the CTP_exam_dates.json file represent the delay relative to the initial SAH symptoms. All data were acquired in accordance with French ethics and regulations regarding patients' information, consent, data curation, and publication.