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心肌灌注显像
心肌灌注显像
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心肌灌注显像是什么?
心肌灌注显像 (Myocardial Perfusion Imaging,简称MPI),也称为 MIBI 扫描,通过注射一种放射线示踪剂,随后使用特殊照相机(Gamma 射线照相机)采集影像来
评估静息及运动时的心脏功能以及血流情况。这项检查可以帮助医生决定心脏病患是否需要进一步的治疗或外科手术。
检查前的准备
药物
检查前的准备在检查之日,请停用医生所指定的药物,并且在检查当天随身携带药物以便检查后服用。
若您不确定哪些药物该停用,请参考以下心脏药物名单:
Acebutolol (Sectral)
Aminophylline
Atenolol (Tenormin)
Atenolol with Nifedipine (Niften)
Bisoprolol (Concor)
Btexaolol (Kerlone)
Carvedilol (Coreg)
Labetolol (Trasicor)
Metoprolol (Betaloc)
Nadolol (Corcard)
Pindolol (Visken)
Propranolol (Inderal, C
ardinol, Duranol, Contelol)
Sotalol (Sotacor
)
Timolol (Blocadren)
Tertatolol (Artex)
Theophylline (Nuelin)
食品和饮料
除了白开水,请不要在检查前的12个小时饮用或食用:
含咖啡因的饮料,如咖啡和茶
汽水,如可乐
美露(Milo),好立克(Horlicks),和阿华田(Ovaltine)
含巧克力的食品
若检查当天您
无须验血
,您也可以在检查之前吃个便餐。
穿着
请穿或随身携带适合在跑步机上运动的衣服和鞋袜。您可以使用病人专用的储物柜或更衣室。
对于男性病患,有必要在检察前剃干净胸部毛发,以便在胸部粘贴心电图电极。您可以选择在检察前自己剃,或要求护士的帮忙。
检查如何进行?
负荷扫描
包括等待时间,需要大约
3小时
。
检查时,您必须在跑步机上运动,期间通过手臂的静脉血管注射少量的放射线示踪剂。
如果您无法运动,该检查仍能进行。当您在跑步机上慢走或躺在床上时,医生将注射一种特殊的药物用来增加心脏的负荷。
负荷检查后,您需要等待半小时至2小时,然后进行扫描检查。医生将会分析您的负荷扫描情况来决定您是否需要进行静息扫描 (同一天或另一天)。
静息扫描 (如需要)
包括等待时间,需要大
约3小时
。
根据医生的决定和您的健康状况,您或许在负荷扫描之后需要进行静息扫描。依情况而定,静息扫描也可在负荷扫描之前进行。
静息扫描不必另外付费。
在同一天进行
同一天的静息扫描将会预留给在1周内与医生有门诊预约的病人。预约在下午进行 MPI 扫描的病人将会在另一天安排静息扫描。
静息检查需要在负荷检查时所注射药物的3小时后开始。在扫描前可以进食。小剂量的放射线示踪剂会再次从手臂上的静脉注射,注射后1小时开始扫描。为了使示踪剂充分灌流(血流通过动脉)至心脏,有些病人可能需要等待多过1小时。
在另一天进行
您需要在另一天来到心脏中心进行静息扫描。您不需要在扫描前禁食或限制您的饮食。检查过程和同一天进行静息扫描时相似。
这项检查安全吗?
心肌灌注显像是一项安全的检查。检查过程中虽然有一些放射线,但剂量严格控制在可接受的安全范围内。至于负荷检查,在检查过程中,您的心率,血压和心电图将由医生在旁密切监控。
如果您确定或怀疑怀孕,我们建议您暂时不要进行该检查,并且请通知您的医生。
检查当天,请尽可不要带12岁以下的儿童,并且在检查后24小时,宜尽量减少与孕妇和婴儿接触,以避免不必要的辐射。如果你正在哺乳,请在检查后24小时恢复哺乳。
如果我感觉不适,还能接收这项检查吗?
如果患有感冒并且发烧,传染性疾病如眼红或水痘,请致电更换检查预约或让医生为您做检查以确认您是否适合进行检查。
付款方式及疑问
您可以使用现金,NETS或信用卡支付费用。
如果您需要更改预约时间,请在星期一至五早上8点至下午5点之间或星期六早上8点至中午12点之间致电:(65) 6704 8181。
若需查询,请发送电子邮件至
[email protected]
。
View our article in English:
Myocardial Perfusion Imaging
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