Correlations between intravascular pressure gradients and cerebral blood flow in patients with symptomatic, medically refractory, anterior circulation artery stenosis : an exploratory study
© Author(s) (or their employer(s)) 2023. No commercial re-use. See rights and permissions. Published by BMJ..
BACKGROUND: Fractional flow reserve is widely used in coronary disease management, with a threshold of 0.80. However, similar thresholds are unclear in functional assessment of intracranial atherosclerotic stenosis (ICAS).
OBJECTIVE: To investigate the potential threshold values in functional assessment of ICAS by studying the relation between pressure-derived indexes and perfusion parameters derived from arterial spin labeling (ASL).
METHODS: Patients were consecutively screened between June 2019 and December 2020. The translesional gradient indices were measured by pressure guidewire under resting-state conditions and recorded as mean distal/proximal pressure ratios (Pd/Pa) and translesional pressure difference (Pa-Pd). Preoperative and postoperative cerebral blood flow (CBF) bilaterally and the relative cerebral blood flow ratio (rCBF) were measured and recorded by ASL imaging. Patients were defined as having reversible hemodynamic insufficiency only if the preoperative rCBF was <0.9 and the postoperative rCBF≥0.9. Preoperative and postoperative Pd/Pa or Pa-Pd values of those patients were used to calculate the threshold.
RESULTS: Twenty-five patients (19 men, 6 women) with a mean age of 56.7±9.4 years were analyzed. Seventeen patients (68%) had lesions at the M1 segment of the middle cerebral artery, eight patients (32%) had lesions in the intracranial internal carotid artery. In 14 of the 25 patients, the preoperative rCBF was <0.9 and the postoperative rCBF≥0.9. Cut-off values of Pd/Pa=0.81 and Pa-Pd=8 mm Hg were suggested to be associated with hemodynamic insufficiency.
CONCLUSIONS: In a highly selected subgroup with ICAS, cut-off values of translesional pressure gradients (Pd/Pa=0.81 or Pa-Pd=8 mm Hg) were preliminarily established, which may facilitate clinical decision-making in the management of ICAS.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - year:2023 |
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| Enthalten in: |
Journal of neurointerventional surgery - (2023) vom: 04. Juli |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Li, Long [VerfasserIn] |
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Date Revised 04.07.2023 published: Print-Electronic Citation Status Publisher |
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| doi: |
10.1136/jnis-2023-020144 |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM359037542 |
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| 041 | |a eng | ||
| 100 | 1 | |a Li, Long |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Correlations between intravascular pressure gradients and cerebral blood flow in patients with symptomatic, medically refractory, anterior circulation artery stenosis |b an exploratory study |
| 264 | 1 | |c 2023 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
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| 500 | |a Date Revised 04.07.2023 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status Publisher | ||
| 520 | |a © Author(s) (or their employer(s)) 2023. No commercial re-use. See rights and permissions. Published by BMJ. | ||
| 520 | |a BACKGROUND: Fractional flow reserve is widely used in coronary disease management, with a threshold of 0.80. However, similar thresholds are unclear in functional assessment of intracranial atherosclerotic stenosis (ICAS) | ||
| 520 | |a OBJECTIVE: To investigate the potential threshold values in functional assessment of ICAS by studying the relation between pressure-derived indexes and perfusion parameters derived from arterial spin labeling (ASL) | ||
| 520 | |a METHODS: Patients were consecutively screened between June 2019 and December 2020. The translesional gradient indices were measured by pressure guidewire under resting-state conditions and recorded as mean distal/proximal pressure ratios (Pd/Pa) and translesional pressure difference (Pa-Pd). Preoperative and postoperative cerebral blood flow (CBF) bilaterally and the relative cerebral blood flow ratio (rCBF) were measured and recorded by ASL imaging. Patients were defined as having reversible hemodynamic insufficiency only if the preoperative rCBF was <0.9 and the postoperative rCBF≥0.9. Preoperative and postoperative Pd/Pa or Pa-Pd values of those patients were used to calculate the threshold | ||
| 520 | |a RESULTS: Twenty-five patients (19 men, 6 women) with a mean age of 56.7±9.4 years were analyzed. Seventeen patients (68%) had lesions at the M1 segment of the middle cerebral artery, eight patients (32%) had lesions in the intracranial internal carotid artery. In 14 of the 25 patients, the preoperative rCBF was <0.9 and the postoperative rCBF≥0.9. Cut-off values of Pd/Pa=0.81 and Pa-Pd=8 mm Hg were suggested to be associated with hemodynamic insufficiency | ||
| 520 | |a CONCLUSIONS: In a highly selected subgroup with ICAS, cut-off values of translesional pressure gradients (Pd/Pa=0.81 or Pa-Pd=8 mm Hg) were preliminarily established, which may facilitate clinical decision-making in the management of ICAS | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Atherosclerosis | |
| 650 | 4 | |a Intervention | |
| 650 | 4 | |a Stroke | |
| 700 | 1 | |a Yang, Bin |e verfasserin |4 aut | |
| 700 | 1 | |a Dmytriw, Adam A |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Yanling |e verfasserin |4 aut | |
| 700 | 1 | |a Gong, Haozhi |e verfasserin |4 aut | |
| 700 | 1 | |a Bai, Xuesong |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Chao |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Jian |e verfasserin |4 aut | |
| 700 | 1 | |a Dong, Jia |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Yabing |e verfasserin |4 aut | |
| 700 | 1 | |a Gao, Peng |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Tao |e verfasserin |4 aut | |
| 700 | 1 | |a Luo, Jichang |e verfasserin |4 aut | |
| 700 | 1 | |a Xu, Xin |e verfasserin |4 aut | |
| 700 | 1 | |a Feng, Yao |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Xiao |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Renjie |e verfasserin |4 aut | |
| 700 | 1 | |a Ma, Yan |e verfasserin |4 aut | |
| 700 | 1 | |a Jiao, Liqun |e verfasserin |4 aut | |
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