scholarly journals Correlation between Spot Sign and Intracranial Hemorrhage Expansion on Dual-Phase CT Angiography

Diagnostics ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 215
Author(s):  
Hyesoo Kim ◽  
Ja Hong Goo ◽  
Hyo Sung Kwak ◽  
Seung Bae Hwang ◽  
Gyung Ho Chung
Keyword(s):  
Intracranial Hemorrhage ◽  
Volume Growth ◽  
Computed Tomographic Angiography ◽  
Second Phase ◽  
Dual Phase ◽  
Contrast Extravasation ◽  
Spot Sign ◽  
Computed Tomographic ◽  
Linear Contrast ◽  
Morphological Patterns

Purpose: Expansion of intracranial hemorrhage (ICH) is an important predictor of poor clinical outcome. ICH expansion can be predicted with a spot sign on computed tomographic angiography (CTA). We aimed to evaluate the correlation between spot signs on CTA and ICH expansion on dual-phase CTA. Methods: Patients with spontaneous ICH between January 2017 and April 2019 who underwent an initial CT, dual-phase CTA, and a subsequent CT were retrospectively identified. ICH expansion was defined as volume growth of >33% or >6 mL. We analyzed the presence and change in size of the spot sign in the first phase and second phase CTA. Also, we divided the morphological status of the spot sign, such as a dot-like lesion or linear contrast extravasation, in the first and second phase CTA. Results: A total of 206 patients, including 38 (18.5%) with ICH expansion and 45 (21.8%) with a spot sign, qualified for analysis. Of patients with a spot sign, 26 (57.8%) had ICH expansion on subsequent CT. Increased size of a spot sign in second-phase CTA was more frequent in the ICH expansion group than in the no-expansion group (96.2% vs. 52.6%, p < 0.001). First visualization of a spot sign in the second phase was more common in the no-expansion group than in the ICH expansion group (47.4% vs. 3.8%, p < 0.001). The morphological patterns of a spot sign between the two groups were not significantly different. Conclusion: Spot signs on dual-phase CTA have different sizes and morphological patterns. Increased size of a spot sign in the second phase of CTA can help identify patients at risk for ICH expansion.

Acute intracerebral hemorrhage with a spot sign during computed tomographic angiography

2016 ◽  
Vol 16 (8) ◽  
pp. 976-977
Author(s):  
Kwang Hoon Kim ◽  
Hyun Goo Kang ◽  
Seong Hwan Ahn ◽  
Ji Yeon Chung ◽  
In Sung Choo ◽  
...  
Keyword(s):  
Intracerebral Hemorrhage ◽  
Computed Tomographic Angiography ◽  
Spot Sign ◽  
Computed Tomographic ◽  
Acute Intracerebral Hemorrhage ◽  
Tomographic Angiography

scholarly journals Rate of Contrast Extravasation on Computed Tomographic Angiography Predicts Hematoma Expansion and Mortality in Primary Intracerebral Hemorrhage

Stroke ◽  
2015 ◽  
Vol 46 (9) ◽  
pp. 2498-2503 ◽  
Author(s):  
H. Bart Brouwers ◽  
Thomas W.K. Battey ◽  
Hayley H. Musial ◽  
Viesha A. Ciura ◽  
Guido J. Falcone ◽  
...  
Keyword(s):  
Intracerebral Hemorrhage ◽  
Computed Tomographic Angiography ◽  
Hematoma Expansion ◽  
Contrast Extravasation ◽  
Computed Tomographic ◽  
Tomographic Angiography

scholarly journals Prospective Validation of the Computed Tomographic Angiography Spot Sign Score for Intracerebral Hemorrhage

Stroke ◽  
2013 ◽  
Vol 44 (11) ◽  
pp. 3097-3102 ◽  
Author(s):  
Javier M. Romero ◽  
H. Bart Brouwers ◽  
JingJing Lu ◽  
Josser E. Delgado Almandoz ◽  
Hillary Kelly ◽  
...  
Keyword(s):  
Intracerebral Hemorrhage ◽  
Computed Tomographic Angiography ◽  
Spot Sign ◽  
Computed Tomographic ◽  
Tomographic Angiography

scholarly journals Contrast extravasation from basilar artery without aneurysm formation on digital subtraction angiography in computed tomography angiogram-negative subarachnoid hemorrhage: A case report

2021 ◽  
Vol 12 ◽  
pp. 498
Author(s):  
Hideki Nakajima ◽  
Takuro Tsuchiya ◽  
Shigetoshi Shimizu ◽  
Hidenori Suzuki
Keyword(s):  
Subarachnoid Hemorrhage ◽  
Digital Subtraction Angiography ◽  
Basilar Artery ◽  
Neurological Status ◽  
Computed Tomographic Angiography ◽  
World Federation ◽  
Digital Subtraction ◽  
Contrast Extravasation ◽  
Computed Tomographic ◽  
Tomographic Angiography

Background: The causes of angiogram-negative subarachnoid hemorrhage (SAH) on initial angiography, which accounts for 10–30% of spontaneous SAH, are heterogeneous and still unclear. We report a case of nonaneurysmal SAH, in which initial computed tomographic angiography (CTA) showed no source of bleeding, but the subsequent digital subtraction angiography (DSA) revealed contrast extravasation from the basilar artery without aneurysms. Case Description: A 67-year-old woman with a medical history of hypertension presented as SAH of World Federation of Neurological Surgeons Grade II. CTA on admission did not show any cause of bleeding and DSA was subsequently performed to show contrast extravasation from a perforator of the middle third of the basilar artery without aneurysms during the subsequent DSA, resulting in profound deterioration SAH and neurological status. The patient was conservatively treated. Follow-up DSAs on days 2 and 16 showed no source of bleeding as well. Conclusion: Although the precise cause of bleeding in this case is uncertain, SAH might be caused by local dissection of the basilar artery perforator, and the bleeding site might heal spontaneously without forming of a pseudoaneurysm.

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