IASCORE - calculate UIATS and PHASES scores



This website calculates the UIATS and PHASES scores from given inputs.

Patients with multiple aneurysms: each aneurysm should be tested separately and will result in separate recommendations for each aneurysm.

Regarding ISUIA, UCAS and PHASES score only the most dangerous is to be taken into account.

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ISUIA (International Study on Unruptured Intracranial Aneurysms) "Unruptured intracranial aneurysms: natural history, clinical outcome, and risks of surgical and endovascular treatment" ref: Lancet 2003; 362: 103-10 Source

UCAS (Unruptured Cerebral AneurysmStudy of Japan) "The Natural Course of Unruptured Cerebral Aneurysms in a Japanese Cohort" ref: N Engl J Med 2012;366:2474-82 Source

"Development of the PHASES score for prediction of risk of rupture of intracranial aneurysms: a pooled analysis of six prospective cohort studies" ref: Lancet Neurol 2014; 13: 59-66 Source

UIATS: "The unruptured intracranial aneurysm treatment score" ref Neurology 85 September 8, 2015 Source