Sindhura Manne, Rangasami Rajeswaran, Chandrasekharan Anupama
Department of Radiology and Imaging Sciences, Sri Ramachandra Institute of Higher Education and Research (DU), Porur, Chennai, India.
J Neurosci Rural Pract. 2020 Jul;11(3):436-441. doi: 10.1055/s-0040-1712716. Epub 2020 Jun 1.
The aim of the study is to assess the role of ultrafast (UF) magnetic resonance (MR) sequences in stroke imaging. We prospectively studied 85 patients having clinical suspicion of stroke referred for MR imaging (MRI) during August 2016 to July 2018. These patients were subjected to both conventional and UF MRI sequences. The patients were divided into six categories based on the pathologies encountered. Further subclassification was done based on the size of the lesions as ≤10 mm and >10 mm as seen separately in both UF and conventional MR sequences. The number and visibility of these lesions on conventional and UF MRI were compared. The image quality of all the subjects was also compared based on a scale categorized into excellent, satisfactory, and poor. The findings on conventional and UF imaging sequences were correlated with the final clinical diagnosis arrived at the time of discharge. In our study comprising 85 patients, 57 showed pathologies. The patients showing pathologies were assigned into the six categories as acute infarct (34 cases), acute hemorrhagic infarct (six cases), chronic infarct (17 cases), chronic hemorrhagic infarct (four cases), subacute infarct (three cases), and chronic hemorrhage (one case). The number of lesions seen on conventional and UF sequences were the same although there was a slight decrease in the size of the lesions on UF sequences as compared with conventional counterparts. The image quality using UF sequences was better in motion prone patients while conventional imaging showed better image quality in cooperative patients. In motion prone patients, UF sequences are a suitable alternative for conventional sequences as they help in arriving at the diagnosis in lesser time, with reasonably good image quality, and without motion artifacts. In cooperative stroke patients, it is better to use conventional MR sequences as the image quality is better.
本研究的目的是评估超快（UF）磁共振（MR）序列在中风成像中的作用。
我们前瞻性地研究了2016年8月至2018年7月期间因临床怀疑中风而接受磁共振成像（MRI）检查的85例患者。这些患者同时接受了传统和超快MRI序列检查。根据所遇到的病理情况，将患者分为六类。进一步根据病变大小进行亚分类，在超快和传统MR序列中分别观察到病变大小≤10mm和>10mm。比较了这些病变在传统和超快MRI上的数量和可见性。还根据分为优秀、满意和差的量表比较了所有受试者的图像质量。传统和超快成像序列上的发现与出院时得出的最终临床诊断相关。
在我们这项包含85例患者的研究中，57例显示有病变。有病变的患者被分为六类，即急性梗死（34例）、急性出血性梗死（6例）、慢性梗死（17例）、慢性出血性梗死（4例）、亚急性梗死（3例）和慢性出血（1例）。尽管与传统序列相比，超快序列上病变的大小略有减小，但在传统和超快序列上看到的病变数量相同。在易动患者中，使用超快序列的图像质量更好，而传统成像在配合良好的患者中显示出更好的图像质量。
在易动患者中，超快序列是传统序列的合适替代方法，因为它们有助于在更短的时间内做出诊断，具有相当好的图像质量，并且没有运动伪影。在配合良好的中风患者中，最好使用传统MR序列，因为图像质量更好。
