Acetylsalicylic Acid Does Not Prevent Digital Subtraction Angiography-Related High Signal Intensity Lesions in Diffusion-Weighted Imaging in Cerebrovascular Patients

Brockmann, Carolin; Şeker, Fatih; Weiß, Christel; Groden, Christoph; Scharf, Johann

doi:10.1007/s00062-011-0076-3

Cited by 4 publications

(3 citation statements)

References 28 publications

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“…We hypothesize that most embolic infarcts occur due to dislodged superficial microthrombi in the vessels caused by probing with catheters or guidewires. Other possible explanations include air emboli or foreign body emboli caused by contrast injections [ 12 , 21 , 22 , 23 , 24 ]. Consistent with our study, cortical and subcortical locations of lesions, as well as a location in areas previously probed, have been described most frequently [ 2 , 8 , 12 , 23 ].…”

Section: Discussionmentioning

confidence: 99%

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Frequency and Pattern of MRI Diffusion Restrictions after Diagnostic Catheter Neuroangiography

et al. 2023

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(1) Background: We investigated the frequency, location, and lesion size of diffusion restrictions (DR) in magnetic resonance imaging (MRI) of asymptomatic patients after diagnostic angiography and assessed risk factors for their occurrence. (2) Methods: We analyzed diffusion-weighted images (DWI) of 344 patients undergoing diagnostic angiographies in a neuroradiologic center. Only asymptomatic patients who received a magnetic resonance imaging (MRI) examination within seven days after the angiography were included. (3) Results: Asymptomatic infarcts on DWI were identified in 17% of the cases after diagnostic angiography. In these 59 patients, a total of 167 lesions were noted. The diameter of the lesions was 1–5 mm in 128 lesions, and 5–10 mm in 39 cases. Dot-shaped diffusion restrictions were found most frequently (n = 163, 97.6%). None of the patients had neurological deficits during or after angiography. Significant correlations were found between the occurrence of lesions and patient age (p < 0.001), history of atherosclerosis (p = 0.014), cerebral infarction (p = 0.026), or coronary heart disease/heart attack (p = 0.027); and the amount of contrast medium used (p = 0.047) and fluoroscopy time (p = 0.033). (4) Conclusions: With an incidence of 17%, we observed a comparatively high risk for asymptomatic cerebral ischemia after diagnostic neuroangiography. Further measures to reduce the risk of silent embolic infarcts and improve the safety of neuroangiography are warranted.

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Section: Discussionmentioning

confidence: 99%

“…Other possible explanations include air emboli or foreign body emboli caused by contrast injections [ 12 , 21 , 22 , 23 , 24 ]. Consistent with our study, cortical and subcortical locations of lesions, as well as a location in areas previously probed, have been described most frequently [ 2 , 8 , 12 , 23 ].…”

Section: Discussionmentioning

confidence: 99%

Frequency and Pattern of MRI Diffusion Restrictions after Diagnostic Catheter Neuroangiography

et al. 2023

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“…although aSa is of questionable value in the primary prevention of vascular events without previous disease [31] and may be of little effect in reducing the risks of diagnostic angiography [32], aSa has proven effects in many thrombogenic situations [33] and especially in vascular interventions. it is the mainstay of treatment in coronary interventions and carotid stenting, has been effective in peripheral endovascular treatment [34] and it also prevents thromboembolic complications in the endovascular treatment of cerebral aneurysms [35,36].…”

Section: Acetylsalicylic Acidmentioning

confidence: 99%