Digital subtraction CT angiography for the detection of posterior inferior cerebellar artery aneurysms: comparison with digital subtraction angiography

2017 ◽  
Vol 27 (9) ◽  
pp. 3744-3751 ◽  
Author(s):  
Guo Zhong Chen ◽  
Song Luo ◽  
Chang Sheng Zhou ◽  
Long Jiang Zhang ◽  
Guang Ming Lu
Keyword(s):  
Digital Subtraction Angiography ◽  
Ct Angiography ◽  
Posterior Inferior Cerebellar Artery ◽  
Digital Subtraction ◽  
Cerebellar Artery

scholarly journals Digital Subtraction Angiography for CT Angiogram Negative Haemorrhages

2018 ◽  
Vol 45 (5) ◽  
pp. 522-526
Author(s):  
Helen Wong ◽  
Luke Hodgson ◽  
Jillian Banfield ◽  
Jai J. S. Shankar
Keyword(s):  
Digital Subtraction Angiography ◽  
Ct Angiography ◽  
Posterior Inferior Cerebellar Artery ◽  
Artery Aneurysm ◽  
Digital Subtraction ◽  
Ct Scanner ◽  
Negative Finding ◽  
Ct Angiogram ◽  
Imaging Results ◽  
Negative Findings

AbstractBackgroundIn patients with subarachnoid haemorrhage (SAH) and a negative finding on CT angiography (CTA), further imaging with digital subtraction angiography (DSA) is commonly performed to identify the source of bleeding. The purpose of this study was to investigate whether negative findings on CTA can reliably exclude aneurysms in patients with acute SAH.MethodsThis retrospective study identified all DSAs performed between August 2010 and July 2014 within our institution. CT angiography was performed with a 64-section multidetector row CT scanner. Only DSAs from patients with confirmed SAH and a negative CTA result were included in the final analyses. A fellowship-trained neuroradiologist reviewed the imaging results.ResultsOf the 857 DSAs, 50 (5.83%) were performed in 35 patients with CTA-negative SAH. Of the 35 patients, three (8.57%) had positive findings on the DSA. In one patient, suspicious dissection of the extra- and intra-cranial segment of the right vertebral artery could not be confirmed even in retrospect. In the second patient, the suspicious finding of tiny protuberance from the left paraclinoid internal carotid artery (ICA) on DSA did not change on follow-up and did not change patient’s management. The third patient had a posterior inferior cerebellar artery aneurysm, which was not seen on the initial CTA owing to the incomplete coverage of the head on the CTA.ConclusionIn patients with SAH, negative findings on a technically sound CTA are reliable in ruling out aneurysms in any pattern of SAH or no blood on CT. Our observations need to be confirmed with larger prospective studies.

scholarly journals Lessons from the Diagnosis and Treatment of Spontaneous Vertebral Arterial Dissection

2009 ◽  
Vol 15 (2) ◽  
pp. 203-208 ◽  
Author(s):  
S. Shi ◽  
K. Chen ◽  
X. Ge ◽  
B. Ni
Keyword(s):  
Vertebral Artery ◽  
Digital Subtraction Angiography ◽  
Posterior Inferior Cerebellar Artery ◽  
Left Vertebral Artery ◽  
Digital Subtraction ◽  
Limb Weakness ◽  
Cerebellar Artery ◽  
Autopsy Data ◽  
Basilar Arteries ◽  
Occipital Headache

A 36-year-old man presented a sudden left occipital headache and right limb weakness after tooth-brushing. Conventional catheter digital subtraction angiography (DSA) showed a left VA occlusion at the crotch of the posterior inferior cerebellar artery. Four days later, the patient got worse. The angiogram showed the left vertebral artery had reopened and the basilar trunk occluded above the AICA. He died two days later and autopsy demonstrated a dissection of the basilar arteries. Based on the autopsy data from the patient in this study, we suggest that the BA dissection might be due to left VA dissection, and placing a stent on the juncture between the uninjured VA and the basilar trunk might be an effective method to prevent fatal BA occlusion.

scholarly journals Anatomical variations of posterior inferior cerebellar artery (PICA) on digital subtraction angiography (DSA)

2021 ◽  
Vol 7 (1) ◽  
pp. 54-60
Author(s):  
Dileep Reddy Ayapaneni ◽  
Surekha Srikonda ◽  
Krishna Teja Nerella ◽  
Latha P. Reddy
Keyword(s):  
Vertebral Artery ◽  
Digital Subtraction Angiography ◽  
Posterior Inferior Cerebellar Artery ◽  
Age Groups ◽  
Anatomical Variations ◽  
Distal Segment ◽  
Craniovertebral Junction ◽  
Digital Subtraction ◽  
Anatomic Variations ◽  
Cerebellar Artery

Introduction: The posterior inferior cerebellar artery (PICA) often exhibits anatomical variations at the craniovertebral junction. Few studies investigated variations of the posterior inferior cerebellar artery, and the prevalence of other variations has not been reported. The study aimed to identify variations of the posterior inferior cerebral artery using cerebral Digital Subtraction Angiography (DSA). Method: 50 patients underwent 64-slice cerebral Digital Subtraction Angiography. Four types of variations were observed. Results: Out of a total of 50 patients, 23 (46%) were males and 27 (54%) females (all age groups). Our study has shown the utility of the 2 sequences - fluoroscopy and cine. All 2 sequences have their significance in evaluating anatomical variations in PICA. Only 20% of the 50 patients had all the posterior inferior cerebellar artery without anatomical variations. Anatomic variations commonly involve the distal segment of the vertebral artery (VA). Most of them are seen arising from the C1, C2, and both C1 and C2 origins. Anatomic variations involve arising from the C1 origin in 9 patients, C2 origin in 11 patients, C1 & C2 origin in 8 patients, and other variations observed in 12 patients. Conclusion: Variations of the posterior inferior cerebellar artery can be easily evaluated by cerebral Digital Subtraction Angiography (CDSA). Recognizing and reporting them at cerebral CDSA may be clinically important. Surgeons should be mindful of this variation during operations.

Comparison Between Computed Tomography Angiography and Digital Subtraction Angiography in Critical Lower Limb Ischemia

2019 ◽  
Vol 15 (5) ◽  
pp. 496-503 ◽  
Author(s):  
Hesham Ebrahim Ahmed Al-rudaini ◽  
Ping Han ◽  
Huimin Liang
Keyword(s):  
Digital Subtraction Angiography ◽  
Ct Angiography ◽  
Lower Limb ◽  
Limb Ischemia ◽  
Definitive Treatment ◽  
Digital Subtraction ◽  
Arterial Tree ◽  
Lower Limb Ischemia ◽  
Significant Difference ◽  
Peripheral Arterial

Background:CT Angiography (CTA) of aortoiliac and lower extremity arteries is a relatively recent innovation of CT imaging that has changed after the introduction of multi-detector row scanners.Objective:The study aimed to evaluate the diagnostic accuracy of Multidetector Computed Tomographic Angiography (MDCTA) in the assessment of arterial tree in patients with Peripheral Arterial Occlusive Disease (PAOD), as compared to Digital Subtraction Angiography (DSA).Methods:A single-center nonrandomized prospective study was conducted on 50 patients complaining of peripheral arterial disease (chronic stage) from February 2017 to October 2017. All the patients were exposed to DSA and CTA prior to definitive treatment. The images were then analyzed using maximum intensity projection, volume-rendered, and curved multiplane reformation techniques.Results:All the patients involved in this study were susceptible according to their clinical presentation. The statistical analysis exposed a highly significant difference between CTA and DSA in the assessment of stenosis at the level of Femoropopliteal segment (P<0.01), while for infrapopliteal segment, there was no statistically significant difference between CTA and DSA having 8% versus 14% insignificant stenosis and 62% versus 47% significant stenosis in CTA and DSA, respectively. The overall accuracy of CT angiography in the femoropopliteal segments was 95.20% while in the infrapopliteal segment it was 94.5%.Conclusion:Multidetector CT angiography was found to be a reliable alternative mean for pathoanatomical description of the arterial lesions in critical lower limb ischemia and its subsequent management in comparison to digital subtraction angiography.

scholarly journals Aortoiliac and Lower Extremity Arteries Assessed with 16–Detector Row CT Angiography: Prospective Comparison with Digital Subtraction Angiography

Radiology ◽  
2005 ◽  
Vol 236 (3) ◽  
pp. 1083-1093 ◽  
Author(s):  
Jürgen K. Willmann ◽  
Bernhard Baumert ◽  
Thomas Schertler ◽  
Simon Wildermuth ◽  
Thomas Pfammatter ◽  
...  
Keyword(s):  
Lower Extremity ◽  
Digital Subtraction Angiography ◽  
Ct Angiography ◽  
Digital Subtraction ◽  
Prospective Comparison

Correlation between CT angiography and digital subtraction angiography in acute ischemic strokes

2021 ◽  
Vol 200 ◽  
pp. 106399
Author(s):  
Su Jin Lee ◽  
Belinda Liu ◽  
Neil Rane ◽  
Peter Mitchell ◽  
Richard Dowling ◽  
...  
Keyword(s):  
Digital Subtraction Angiography ◽  
Ct Angiography ◽  
Digital Subtraction
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