Purpose

To investigate the number of acute stroke patients undergoing CT angiography (CTA) for suspected large vessel occlusion (LVO) and those eligible for thrombectomy in relation to the population.

Methods

Consecutive patients in a Western population who underwent CTA for suspected LVO of the proximal anterior circulation between January and August 2019 were included. The date and time of CTA and the number of patients eligible for thrombectomy were assessed. Our hospital’s service area population was estimated using the Central Bureau for Statistics data. One-way analysis of variance with post-hoc tests and chi-squared tests were used for statistical analyses.

Results

Of 520 patients (49% males, mean age of 72 years) undergoing CTA, 84 (16.2%) were eligible for thrombectomy. Our hospital’s service area population was estimated at 420,000. Therefore, 3.6 CTA scans were performed and 0.6 patients were eligible for thrombectomy per 100,000 people per week. The number of patients undergoing CTA and the number of patients eligible for thrombectomy both did not significantly differ between any days of the week (P > 0.05). A total of 236 (45%) and 284 patients (55%) underwent CTA during office and on-call hours, respectively. The percentage of patients eligible for thrombectomy did not significantly differ between office and on-call hours (P = 0.834).

Conclusion

Our study estimated the number of stroke patients undergoing CTA for suspected LVO and those eligible for thrombectomy in relation to the population. Numbers were essentially the same throughout the week, and during office and on-call hours. Our data can be used to make adequate staffing plans.

中文翻译：

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急性缺血性脑卒中血栓切除术临床实施的放射学工作量：荷兰的经验。

目的

调查因涉嫌大血管闭塞（LVO）而接受CT血管造影（CTA）的急性中风患者的数量以及符合人群血栓切除术标准的患者的数量。

方法

纳入了2019年1月至2019年8月期间因CTA怀疑近端前循环LVO接受了CTA治疗的连续患者。评估了CTA的日期和时间以及适合进行血栓切除术的患者数量。我们医院的服务区人口是使用中央统计局的数据估算的。使用事后检验和卡方检验的方差单向分析用于统计分析。

结果

在接受CTA的520例患者中（男性49％，平均年龄72岁），有84例（16.2％）有资格进行血栓切除术。我们医院的服务区人口估计为420,000。因此，进行了3​​.6次CTA扫描，每周每100,000人中有0.6例患者有资格进行血栓切除术。在一周中的任何一天之间，接受CTA的患者人数和符合血栓切除术资格的患者人数均无显着差异（P  > 0.05）。在办公时间和通话时间分别进行了236（45％）和284名患者（55％）的CTA检查。在办公时间和通话时间之间，有资格接受血栓切除术的患者百分比没有显着差异（P  = 0.834）。

结论

我们的研究估计了接受CTA治疗的脑卒中患者中疑似LVO的人数，以及符合人群血栓切除术条件的人数。整个星期，上班时间和通话时间的号码基本相同。我们的数据可用于制定适当的人员配备计划。