雙源CT胸痛序列心胸血管一站式成像技術在急性胸痛征患者中的應用分析

彭金亮 彭可雨 林曉春 梁漢歡

[摘要] 目的 探討雙源CT胸痛序列心胸血管一站式成像技術在急性胸痛征患者中的應用效果。方法 便利選取2018年3月—2019年4月接受胸部血管檢查的患者88例，為其實施胸痛序列血管成像檢查。根據心率確定全劑量曝光時間，心率≤75次/min的患者分為低輻射劑量組（A組，n=20）與常規輻射劑量組（B組，n=22），心率>75次/min的患者分為低輻射劑量組（C組，n=23）與常規輻射劑量組（D組，n=23），比較各組圖像質量評分與輻射有效劑量。結果 4組的檢查圖像均滿意，圖像質量評分差異無統計學意義（P>0.05）;B組有效劑量為（6.98±0.84）mSv，高于A組的（4.99±0.28）mSv（P<0.05）;D組有效劑量為（4.80±0.80）mSv，高于C組的（2.37±0.34）mSv（P<0.05）。結論 心率平穩的急性胸痛患者可應用低劑量胸痛序列診斷，從而為疾病治療爭取時間。

[關鍵詞] 雙源CT;胸痛序列;心胸血管一站式成像;急性胸痛征;應用

[中圖分類號] R574? ? ? ? ? [文獻標識碼] A? ? ? ? ? [文章編號] 1674-0742（2020）06（c）-0175-03

Application Analysis of Dual-source CT Chest Pain Sequence Cardiothoracic Vascular One-stop Imaging Technique in Patients with Acute Chest Pain

PENG Jin-liang1， PENG Ke-yu1， LIN Xiao-chun2， LIANG Han-huan1

1.Department of CT， Gaozhou People's Hospital， Gaozhou， Guangdong Province， 525200 China; 2.Cardiovascular ultrasound， Gaozhou People's Hospital， Gaozhou， Guangdong Province， 525200 China

[Abstract] Objective To explore the application effect of dual-source CT chest pain sequence cardiothoracic vascular one-stop imaging technique in patients with acute chest pain. Methods 88 patients who underwent chest vascular examination were convenient selected and subjected to chest pain serial angiography examination from March 2018 to April 2019. Determine the full-dose exposure time according to heart rate. Patients with heart rate ≤75 beats / min are divided into low radiation dose group （group A， n=20） and conventional radiation dose group （group B， n=22）， heart rate> 75 beats/min; the patients were divided into a low radiation dose group （group C， n=23） and a conventional radiation dose group （group D， n=23）， and compared image quality score and the effective radiation dose of each group. Results The examination images of the four groups were satisfactory， and there was no statistically significant difference in image quality scores （P> 0.05）; the effective dose of group B was （6.98±0.84） mSv， which was higher than that of group A （4.99±0.28） mSv （P<0.05 ）; The effective dose of group D was （4.80 ± 0.80） mSv， which was higher than that of group C（2.37±0.34）mSv（P<0.05）. Conclusion Patients with acute chest pain with stable heart rate can be diagnosed with low-dose chest pain sequence， so as to buy time for disease treatment.

[Key words] Dual-source CT; Chest pain sequence; One-stop cardiothoracic vascular imaging; Acute chest pain sign; Application

急性胸痛是指突發性胸痛，其中臨床急診科屬于常見病與多發病，若疾病未能得到有效控制，可能危及患者生命。通常情況下急性胸痛的致病因素較為復雜，而其中又以心絞痛為主要致病因素[1]。引發心絞痛出現的病因以冠心病為主，通過為患者實施急診靜脈溶栓治療，可使機體冠狀動脈再通，由此防止機體左室重構，有利于心功能與疾病預后改善，使疾病病死率降低。為改善疾病預后，就需要對疾病實施早期診治。而臨床上在對胸痛患者進行診斷時，需應用多種手段才可達到確診效果，包括實驗室檢查、超聲檢查以及數字血管造影檢查，檢查周期長，易導致治療時機延誤[2]。雙源CT具備83 ms的時間分辨率，應用胸痛序列實施心胸血管一站式掃描，不但可診斷冠狀動脈病變，同時可對主動脈、肺動脈以及肺部病變進行確診。但由于胸……