CTs for SAH

CTs for SAH - Does Time Even Matter? - Taming the SRU

Exact time of onset was unknown in 64% of patients. When patients with an unknown exact time of onset were assumed to have presented 30 minutes ...

CT-Negative Subarachnoid Hemorrhage in the First Six Hours

Non-contrast head CT may be falsely negative within the first 6 hours of aneurysmal SAH in the setting of anemia. In our case, the cause may not have been ...

Subarachnoid Hemorrhage and the CT Scan - AAFP

Bob: Emergency medicine dogma has stated that computed tomography (CT) is not sensitive enough to detect subtle subarachnoid hemorrhage (SAH), ...

Sensitivity of Early Brain Computed Tomography to Exclude ...

Sidman et al found CT to be 100% sensitive for diagnosing spontaneous SAH if performed within the first 12 hours but did not specify how many of ...

Subarachnoid Hemorrhage Imaging - Medscape Reference

The normally black subarachnoid cisterns and sulci may appear white in acute hemorrhage. These findings are most evident in the largest ...

CT evaluation of subarachnoid hemorrhage: a practical review for ...

Radiologists working in an emergency radiology setting frequently interpret computed tomography (CT) studies of patients with suspected subarachnoid ...

Sensitivity of modern multislice CT for subarachnoid haemorrhage at ...

The sensitivity of MSCT was 99.6% (95% CI 97.6 to 100) for aneurysmal SAH and 99.0% (95% CI 97.1 to 99.8) for all SAH at 48 hours after headache onset. At 24 ...

Diagnostic Accuracy of CT for Subarachnoid Hemorrhage

An abnormal CT or > 5 rbc's in the CSF would not confirm the diagnosis of SAH (but it would increase the probability from 10% to 25%), but negative results on ...

Subarachnoid Hemorrhage Workup - Medscape Reference

Traditionally, a negative CT scan is followed with lumbar puncture (LP). However, noncontrast CT followed by CT angiography (CTA) of the brain ...

False negative interpretations of cranial computed tomography in ...

Prior studies examining the sensitivity of cranial computed tomography (CT) for the detection of subarachnoid hemorrhage (SAH) have used the final radiology ...

CT-Negative Subarachnoid Hemorrhage in the First Six Hours

Conclusion. Non-contrast head CT may be falsely negative within the first 6 hours of aneurysmal SAH in the setting of anemia. In our case, the cause may not ...

CT evaluation of subarachnoid hemorrhage: a practical review for ...

Clinical grading and CT grading of patients with subarachnoid hemorrhage. A clinical grading scale for patients with SAH is standardly used for ...

Subarachnoid Hemorrhage Recognition, Workup & Diagnosis

Deep dive on key clinical clues, decision rules, indications for CT head and CTA head, indications for lumbar puncture, CSF interpretation ...

Subarachnoid Hemorrhage (SAH) - EMCrit Project

Neurointerventional radiology & neurosurgery. Consider: aneurysm protection, external ventricular drain. radiology. CT angiography (CTA).

2023 Guideline for the Management of Patients With Aneurysmal ...

Emerging technologies: Dual-energy CT and single-photon counting CT represent novel imaging techniques that may be helpful for SAH and aneurysm ...

Diagnostic workup of acute headache and subarachnoid ...

Recent guidelines suggest that non-contrast computed tomography (CT) is adequate to exclude aneurysmal SAH if performed within 6 h after symptom ...

Cerebral aneurysm exclusion by CT angiography based on ...

To identify patients with spontaneous subarachnoid hemorrhage for whom CT angiography alone can exclude ruptured aneurysms.

CT brain image gallery - SAH - Radiology Masterclass -

CT brain images - example of subarachnoid haemorrhage as seen on CT. Dense material in the basal cisterns, fissures and sulci represents acute bleeding into ...

Comparative diagnostic efficacy of cranial CT, CTA, and DSA in ...

Subarachnoid hemorrhage (SAH) is a critical medical condition associated with high morbidity and mortality rates. Timely and accurate diagnosis is crucial for ...

Diagnosis of Subarachnoid Hemorrhage - Emergency Medicine

As you consider the diagnosis of subarachnoid hemorrhage and await her CT, you weigh the value of a post-CT lumbar puncture. You recall a recent meta-analysis ...