目的 探讨低机械指数诊断超声及低声压治疗超声对造影剂微泡的作用效果。方法 低机械指数的诊断超声及不同声压下低能量治疗超声体外辐照造影剂微泡,通过获得的超声造影图像间接分析微泡总浓度的变化,探讨不同机械指数诊断超声及不同声压治疗超声下微泡发生稳定空化及惯性空化情况。结果 低机械指数(<0.2)诊断超声及低声压(<0.15 MPa)治疗超声下微泡以稳定空化为主,随着机械指数增高或声压增高,微泡以稳定空化和惯性空化两种方式并存,当机械指数>0.3或声压>0.2 Mpa时,微泡以惯性空化为主。结论 微泡在低机械指数及低声压作用下发生不同空化效应,随着机械指数或声压增加,微泡破坏增加,以惯性空化效应为主。

Objective To investigate the effect of low mechanical index diagnostic ultrasound and low acoustic pressure therapy on contrast agent microbubbles. Methods Microbubbles were irradiated by diagnostic ultrasound with low mechanical index(MI) and low energy therapy under different acoustic pressure. To obtain the images, and analyze the change of microbubble concentration,the movement trend of microbubbles under different MI and different acoustic pressure were analyzed, to estimated stable cavitation or inertial cavitation of microbubbles. Results Stable cavitation was the main form of microbubbles under low mechanical index (< 0.2) diagnostic ultrasound and low acoustic pressure (< 0.15Mpa). With the increase of mechanical index or acoustic pressure, stable cavitation and inertial cavitation coexisted. When mechanical index > 0.3 or sound pressure > 0.2MPa, microbubbles were mainly inertial cavitation. Conclusion The cavitation effects of microbubbles under low mechanical index and low acoustic pressure are different. With the increase of mechanical index or acoustic pressure, the damage of microbubbles increases, and main effect is the inertial cavitation.

目的 分析血清小而密低密度脂蛋白胆固醇和同型半胱氨酸与脑梗死的关系。方法 择取2018年9月—2019年8月本院收治的脑梗死患者135例设为观察组,同期本院参与体检的健康志愿者135例为对照组,两组受试者均开展血液检测,收集并分析临床资料。结果 观察组性别、平均年龄、吸烟、fib水平与对照组差异无统计学意义(P＞0.05);观察组高血压患病率、糖尿病患病率、TG、LDL-C、sdLDL-C、Lp-PLA2、FBG、Hcy、D-D水平均高于对照组(P＜0.05);观察组TC、HDL-C、PT、APTT、TT水平均低于对照组(P＜0.05);按照NIHSS＜4分、4～15分、≥16分分成轻度组(甲组,n=53)、中度组(乙组,n=49)、重度组(丙组,n=33);甲组、乙组及丙组,两两亚组比较LDL-C、HDL-C、Hcy、sdLDL-C、Lp-PLA2、D-D、PT、APTT、TT及FBG,差异有统计学意义(P＜0.05);甲组、丙组饮酒率差异有统计学意义(P＜0.05);甲组与丙组、乙组与丙组冠心病患病率、Fib水平差异有统计学意义(P＜0.05)。结论 血清小而密低密度脂蛋白胆固醇和同型半胱氨酸与脑梗死有一定关联。

Objective To analyze the relationship of serum small and dense low density lipoprotein cholesterol and homocysteine in cerebral infarction. Methods 135 patients with cerebral infarction admitted to our hospital from September 2018 to August 2019 were selected as the observation group, and 135 healthy volunteers who participated in physical examination in our hospital during the same period were selected as the control group. Results There were no significant differences in sex, average age, smoking, fib level between the observation group and the control group (P>0.05). The prevalence of hypertension, diabetes mellitus, TG, LDL-C, SDLDL-C, LP-PLA2, FBG, Hcy and D-D in the observation group were all higher than those in the control group (P<0.05). The TC, HDL-C, PT, APTT and TT levels in the observation group were all lower than those in the control group (P<0.05). According to NIHSS<4 points, 4~15 points and ≥16 points, the patients were divided into mild group (group A, n=53), moderate group (group B, n=49) and severe group (group C, n=33). Ldl-c, HDL-C, Hcy, SDLDL-C, LP-PLA2, D-D, PT, APTT, TT and FBG were compared in group A, group B and group C, and the differences were statistically significant (P<0.05). The difference of drinking rate between group A and group C was statistically significant (P<0.05). The difference of coronary heart disease prevalence and Fib level between group A and group C, group B and group C was statistically significant (P<0.05). Conclusion Small and dense low density lipoprotein cholesterol and homocysteine are associated with cerebral infarction.

目的 观察电针联合重复经颅磁刺激(rTMS)治疗对卒中后抑郁伴失眠患者的疗效并探讨这种联合治疗的机制。方法 对83例PSD患者随机分为rTMS组28例、电针联合rTMS治疗组25例及药物治疗组30例。电针联合rTMS组在对患者进行rTMS治疗基础上予电针治疗2周,并常规给予选择性五羟色胺重摄取抑制剂(SSRI)草酸艾司西酞普兰抗抑郁药物治疗;rTMS组仅采用重复经颅磁刺激治疗2周;药物组给予同种抗抑郁剂治疗。三组于治疗前及治疗2周后接受17项汉密尔顿抑郁量表(HAMD)和匹茨堡睡眠量表(PSQI)评估及多导睡眠监测(PSG)。结果 三组的HAMD评分、PSQI评分及睡眠参数在治疗基线水平均无明显差异。2周后不同治疗组间HAMD计分降低值总体差异有统计学意义(P<0.001)。药物治疗组HAMD计分降低值小于rTMS组和电针联合rTMS组(P<0.05),电针联合rTMS组HAMD计分降低值大于药物组及rTMS组(P<0.05);组间PSQI计分降低值总体差异有统计学意义 (P<0.05)。电针联合rTMS组PSQI计分降低值大于药物组及rTMS组(P<0.05),而药物组及rTMS组之间的PSQI计分降低值无统计学差异(P<0.05);组间PSG中总睡眠时间(F=16.735,P<0.001)及睡眠效率(F=87.548,P<0.001)治疗前后差值总体差异有统计学意义。电针联合rTMS组总睡眠时间的改善优于药物组及rTMS组(P<0.01),而药物组及rTMS组之间总睡眠时间的改善无统计学差异(P<0.05);电针联合rTMS组睡眠效率的提高优于药物组及rTMS组(P<0.001),而药物组及rTMS组之间的睡眠效率的提高无统计学差异(P>0.05)。结论 电针联合rTMS治疗可显著改善PSD的抑郁情绪、睡眠质量及改善总睡眠时间及睡眠效率,效果优于药物治疗组及rTMS组,体现了电针联合rTMS对PSD治疗的增效作用。

Objective To investigate the effect of electric acupuncture combined with Repetitive Transcranial Magnetic Stimulation (rTMS) treatment of poststroke depression with insomnia and analyze the therapeutic mechanism of this method. Methods 83 patients with PSD were randomly divided into the group of electric acupuncture combined with rTMS (n=32), rTMS group (n=32) and drug treatment group (n=32). The patients in the group of electric acupuncture combined with rTMS were given with the electric acupuncture treatment for 2 weeks on the basis of rTMS treatment, and also were regularly and continuously administrated with antidepressant drug (escitalopram citalopram). The rTMS group were only given with rTMS for 2 weeks, and the patients of the drug treatment group were administrated with the same antidepressant. At the baseline and 2th week, the 17-item Hamilton depression scale (17-HAMD), Pittsburgh Sleep Quality Index (PSQI) and polysomnography (PSG) were evaluated. Results The sleep parameters, PSQI scores and HAMD scores among three groups had no significant difference at baseline. After 2 weeks, the overall difference of HAMD score reduction between different treatment groups was statistically significant (P<0.001). The HAMD score reduction in the drug treatment group was less than that in the rTMS group and the electric acupuncture combined rTMS group (P<0.05), and the HAMD score reduction in the electric acupuncture combined rTMS group was greater than that in the drug group and the rTMS group (P<0.05). The overall difference of PSQI score reduction between groups was significant (P<0.05). The PSQI score reduction value of electric acupuncture combined with rTMS group was greater than that of the drug group and the rTMS group (P<0.05), while there was no significant difference in the PSQI score reduction value between the drug group and the rTMS group (P<0.05). The overall difference of total sleep duration (F=16.735,P<0.001) and sleep efficiency(F=87.548,P<0.001) evalted by PSG among groups was significant. The changes of both the total sleep duration and sleep efficiency of electric acupuncture combined with rTMS group was greater than that of the drug group and the rTMS group (P<0.001), while there was no significant difference neither in the changes of total sleep duration nor sleep efficiency between the drug group and the rTMS group before and after treatment among the groups (P>0.05). Conclusion Electroacupuncture combined with rTMS treatment may improve the efficacy of depression, sleep quality, the total sleep duration and sleep efficiency of PSD, and the effect is better than that of the drug treatment group and the rTMS group, which reflects the synergic effect of electroacupuncture combined with rTMS on PSD treatment.

目的 观察低频电刺激治疗对脑卒中偏瘫疗效,并分析其对患者周围神经电生理学与形态学的影响。方法 选取本院94例脑卒中偏瘫患者,以数字表法随机分为两组,各47例,对照组接受基础康复治疗,实验组予以早期综合康复治疗(于对照组基础上进行低频电刺激治疗),比较两组治疗前后Berg平衡量表(BBS)评分、Fugl-Meyer运动功能(FMA)评分、关节(腕与踝)主动活动范围(AROM)、周围神经电生理学[感觉神经传导速度(SCV)、运动神经传导速度(MCV)、动态肌电图]与形态学[腕横纹正中神经(MN)横截面积(CSA)、宽度(W)以及厚度(T)]。结果 实验组治疗后BBS评分、上肢与下肢FMA评分高于对照组(P＜0.05),腕与踝AROM大于对照组(P＜0.05);实验组治疗后腓总神经与胫神经SCV、MCV高于对照组(P＜0.05),肱二头肌与腓肠肌协同收缩率均低于对照组(P＜0.05);两组治疗前后MN的CSA、T比较无差异(P＞0.05),实验组治疗后MN的W大于对照组(P＜0.05)。结论 低频电刺激联合早期综合康复治疗可有效提高脑卒中偏瘫患者平衡能力、关节活动度及上下肢功能,改善周围神经电生理学与形态学,减轻周围神经损伤。

Objective To observe the curative effect of low frequency electrical stimulation treatment on stroke hemiplegia, and analyze its influences on peripheral nerve electrophysiology and morphology of patients. Methods A total of 94 patients with stroke hemiplegia in the hospital were randomly divided into two groups by number table method, 47 cases in each group. The control group was given basic rehabilitation treatment, while experimental group was given early comprehensive rehabilitation treatment (low frequency electrical stimulation on basis of control group). The scores of Berg Balance Scale (BBS) and Fugl-Meyer assessment (FMA), joint (wrist, ankle) active range of motion (AROM), peripheral nerve electrophysiology [sensory conduction velocity (SCV), motor conduction velocity (MCV), dynamic electromyogram (EMG) ] and morphology [cross-sectional area (CSA) of carpal transverse median nerve (MN), width (W), thickness (T)] before and after treatment were compared between the two groups. Results After treatment, scores of BBS, upper and lower limbs FMA in experimental group were higher than those in control group (P<0.05), AROM of wrist and ankle was larger than that in control group (P<0.05). After treatment, SCV and MCV of common peroneal nerve and tibial nerve in experimental group were higher than those in control group (P<0.05), while co-contraction rates of biceps and gastrocnemius muscles were lower than those in control group (P<0.05). Before and after treatment, there were no differences in CSA and T of MN between the two groups (P>0.05). After treatment, W of MN in experimental group was greater than that in control group (P<0.05). Conclusion Low-frequency electrical stimulation combined with early comprehensive rehabilitation therapy may effectively increase the balance ability, joint range of motion and upper and lower limb function of stroke patients with hemiplegia, improve peripheral nerve electrophysiology and morphology, and reduce peripheral nerve injury.

目的 探讨无痛镇静在胃镜下上消化道异物取出术中的应用价值。方法 回顾分析2017年5月1日—2020年5月1日在东莞东华医院消化内镜中心接受内镜下上消化道异物取出术患者,对其临床资料进行分析,总结比较在无痛镇静下和普通胃镜下上消化道异物取出术两组患者的诊疗效果。结果 共357例患者,行胃镜下异物取出术共372次,其中无痛镇静组99例,普通组273例,其中15例患者在普通胃镜下异物取出术失败改为无痛镇静下胃镜取出术成功取出,最终10人异物未取出转外科或上级医院;在无痛镇静下行胃镜上消化道异物取出术比普通胃镜下异物取出术成功率高(P＜0.05),黏膜损伤、出血、穿孔等并发症少(P＜0.05),人均费用低(P＜0.05);无痛镇静后患者血氧饱和度、血压下降(P＜0.05),心率升高(P＜0.05),其中老年人影响明显(P＜0.05),但不影响患者内镜操作,氟马西尼催醒后心率、血氧饱和度、血压恢复正常(P＞0.05)。结论 在无痛镇静下行胃镜上消化道异物取术安全、有效、成功率高、医疗费用少,患者易于接受的好方法,值得推广。

Objective To explore the application value of painless gastroscope in the removal of foreign body in upper gastrointestinal tract. Methods The study involved patients who visited at the department of endoscopy center at Hospital (Dongguan, China). Retrospective analysis of patients undergoing endoscopic removal of foreign bodies in the upper gastrointestinal tract from May 1, 2017 to May 1, 2020. We analyzed the patients' clinical data and compared the diagnosis and treatment effect between the painless gastroscope group and normal gastroscopy group. Results A total of 357 patients were included, 372 times of removal of foreign body under gastroscope were conducted. A total of 99 cases in painless gastroscope group were treated by painless gastroscope with painless sedation, 273 cases in normal gastroscopy group were treated by normal gastroscopy, among them, 15 cases were failed to removal the foreign body treated by normal gastroscopy, and turned into the painless sedation gastroscopy. Finally, 10 patients with foreign bodies were not removed and transferred to surgical department or higher level hospitals. In the treatment of endoscopic foreign body removal, the success rate of painless gastroscope group was higher (P<0.05), the complication incidence of mucosal injury, bleeding and perforation and cost per capita were lower than that of normal gastroscopy(P<0.05). Following painless sedation, the blood oxygen saturation, blood pressure dropped (P<0.05) and heart rate increased (P<0.05), the effect of the sedatives on the elderly was the most obvious (P<0.05), but it did not affect the patient's endoscopic operation, and the heart rate, blood oxygen saturation and blood pressure (P>0.05) after awakening. Conclusion Painless gastroscope in the removal of foreign body in upper gastrointestinal tract is safe, effective high success rate, less medical cost, and easy for patients to accept, it should be widely applied.

目的 探讨中性粒细胞及淋巴细胞比值与急性冠状动脉综合征、冠状动脉狭窄程度的相关性。方法 选取2019年2月—2020年2月我院收治的急性冠状动脉综合征患者90例作为研究对象,根据检查结果将患者分为两组,分别为不稳定心绞痛组(51例)、急性心肌梗死组(39例),同时选取同期在我院检查且没有明显狭窄的患者52例作为对照组。对三组人群的中性粒细胞-淋巴细胞比值进行测定。比较三组人群中性粒细胞-淋巴细胞比值(NLR)、冠状动脉病变(Gensini)评分、不同冠状动脉病变狭窄患者NLR、Gensini评分、分析中性粒细胞-淋巴细胞比值与急性冠状动脉综合征、冠状动脉狭窄程度的相关性。结果 急性心肌梗死组NLR值大于不稳定心绞痛组、对照组(P＜0.05),急性心肌梗死组Gensini评分高于不稳定心绞痛组、对照组(P＜0.05);重度冠状动脉病变狭窄组NLR值大于中度狭窄组、轻度狭窄组(P＜0.05),重度冠状动脉病变狭窄患者Gensini评分高于中度狭窄组、轻度狭窄组(P＜0.05);NLR与急性冠状动脉综合征、冠状动脉狭窄程度呈正相关(r=0.236,P＜0.05;r=0.214,P＜0.05)。结论 中性粒细胞-淋巴细胞比值与急性冠状动脉综合征有明显的关系,且可以对患者的冠状动脉狭窄程度进行判断。

目的 探讨联合镇静胃肠镜检查在安全性、可行性的效果以及优势方面的临床应用,为优化诊疗流程、方便患者提供科学依据。方法 纳入我院2017年6月—2018年3月行镇静胃肠镜检查的140例患者为研究对象,采用便利抽样法随机分为两组,观察组70例患者行联合镇静胃肠镜检查,对照组70例患者行胃肠镜分次检查。记录并对比分析两组患者的预约时间、检查时长、不适反应、疼痛程度、满意度、检查费用。结果 观察组在预约时间和检查时长、检查后心率变化,患者满意度和检查费用方面,与对照组相比有统计学差异(P＜0.05),而在血压、血氧、镇静及遗忘程度、疼痛程度及不适反应方面无统计学差异(P＞0.05)。结论 联合镇静胃肠镜检查在临床应用方面安全可行,具有便宜、时间少、患者配合度好、符合患者意愿、而且满意度高的优势,值得推广。

Objective To explore the scientific evidence in optimization of diagnosis and treatment process for patients' convenience, we evaluated the clinical effect of gastrointestinal endoscopy with sedation on the safety, feasibility and advantage. Methods We enrolled 140 patients who came to our hospital for gastrointestinal endoscopy from June 2017 to March 2018. We used the convenience sampling method that the patients were randomly divided into two groups: observation group of 70 patients with combined endoscopy, and the control group of 70 patients with seperate endoscopy. We recorded and compared the two groups of patients of appointment time, inspection time, pain degree, patient satisfaction, and cost. Results The two groups were different in the appointment time, inspection time, heart rate changes after endoscopy, patient satisfaction and the costs (P<0.05), while no significant difference was found in blood pressure, blood oxygen degree, sedation, pain degree and discomfort reaction(P>0.05). Conclusion Combined sedative gastrointestinal endoscopy is safe and feasible in clinical application, with the advantages of low cost, less time, good patient cooperation, in line with the wishes of patients, and high satisfaction, which is worthy of popularization.

目的 通过建立特征参数曲线模型分析在不同CT扫描条件下对肺结节鉴别诊断的量化意义。方法 回顾性分析2018年9月—2019年10月我院收治的肺结节患者的CT胸部平扫图像为研究对象,纳入标准为结节直径≥3 mm,无其他病史。在筛选出的96例样本中,符合条件的样本68例(男性39例,女性29例),按扫描剂量的不同将研究对象分为低剂量观察组(管电压120 kV,管电流20 mA)和常规剂量组(管电压120 kV,管电流150 mA),每组各34例;通过测量并计算扫描长度、有效剂量、样本体型、信噪比相关参数,观察不同管电流与有效辐射剂量之间的相关性以及图像质量;运用PACS人工智能软件以及人工综合提取肺结节特征信息(直径、体积、密度纹理、边缘细节、内部结构)并记录数据,进而通过公式计算出肺结节质量;应用U检验分析比较不同管电流下各参数的组间差异,经过单元逻辑对确定的重要参数体积与质量纳入多元逻辑分析,建立特征参数曲线模型并测量曲线下面积及勾画ROC;使用卡方分析评价不同管电流下建立特征参数曲线模型对肺结节定量诊断分析的差异并同时比较不同管电流下的图像质量。结果 研究中发现,样本接受的有效辐射剂量在管电压一定的条件下,随管电流的增加而线性增加;样本肥胖患者(BMI≥23.9)的CT图像在使用低剂量扫描中呈现出明显噪声,影响组织间观察,而BMI标准(18.5≤BMI≤23.9)的样本的CT图像中,肺结节的信噪比与管电流变化未出现明显趋势阈值,差异无统计学意义(P＜0.05);通过特征参数曲线模型显示,肺结节的体积与质量均质性曲线显示出其变化趋势与管电流变化成相关性,且稳定性和一致性较好,故此二要素为模型主要分析成分,观察组ROC曲线显示其曲线下面积为0.826高于常规组ROC曲线显示其曲线下面积为0.747。结论 与常规剂量相比,低剂量CT扫描模式下建立特征参数曲线模型对肺结节鉴别诊断更有可量化意义。

Objective The quantitative significance of differential diagnosis of pulmonary nodules under different CT scanning conditions was analyzed by establishing characteristic parameter curve model. Methods CT plain chest scan images of patients with pulmonary nodules treated in our hospital from September 2018 to October 2019 were analyzed retrospectively. The inclusion criteria were nodule diameter ≥3 mm and no other medical history. Of the 96 selected samples, 68 met the criteria (39 males and 29 females).According to the different scanning dose, the subjects were divided into low dose observation group (tube voltage 120 kV, tube current 20 mA) and conventional dose group (tube voltage 120 kV, tube current 150 mA).There were 34 cases in each group, and the correlation between different tube current and effective radiation dose and image quality were observed by measuring and calculating the relevant parameters of scanning length, effective dose, sample shape and signal-to-noise ratio. PACS artificial intelligence software and artificial synthesis were used to extract the characteristic information (diameter, volume, density texture, edge details, internal structure) of pulmonary nodules and record the data. Furthermore, the mass of pulmonary nodules was calculated by formula, the differences of parameters under different tube currents were compared by U test, the volume and mass of important parameters determined by unit logic were incorporated into multivariate logic analysis. The curve model of characteristic parameters was established, the area under the curve was measured and ROC was sketched. Chi-square analysis was used to evaluate the difference of characteristic parameter curve model for quantitative diagnosis of pulmonary nodules under different tube currents, and to compare the image quality under different tube currents at the same time. Results In the study, it is found that the effective radiation dose received by the sample increases linearly with the increase of tube current under the condition of constant tube voltage. The CT images of obese patients (BMI≥23.9) showed obvious noise when using low dose scan, which affected the inter-tissue observation. However, in the CT images of the samples with BMI standard (18.5 ≤ BMI ≤ 23.9), there was no obvious trend threshold between the signal-to-noise ratio and tube current of pulmonary nodules, and the difference was not statistically significant (P<0.05).The characteristic parameter curve model showed that the volume and mass homogeneity curve of pulmonary nodules showed the change trend was correlated with the change of tube current, and the stability and consistency were good, so the two elements were the main analytical components of the model. The ROC curve of the observation group showed that the area under the curve was 0.826, which was higher than that of the conventional group, the area under the curve of the ROC curve was 0.747. Conclusion Compared with conventional dose, the establishment of characteristic parameter curve model under low dose CT scan mode is more quantifiable for differential diagnosis of pulmonary nodules.

目的 探讨多参数磁共振成像-经直肠超声(mpMRI-TRUS)认知融合技术引导前列腺穿刺活检的临床应用价值。方法 选取2018 年1月—2020年12月就诊于本院且为前列腺癌疑似患者作为研究对象,分为mpMRI-TRUS组与TRUS组。mpMRI-TRUS组所有病例穿刺活检前均行mpMRI检查,根据MRI结果确定靶向病灶,行mpMRI-TRUS认知融合靶向活检和系统10针活检。TRUS组患者只行系统13针活检,比较两组间前列腺癌的检出率,同时比较mpMRI-TRUS组中靶向活检和系统活检在前列腺癌检出率方面的差异,并对穿刺病理结果进行观察和分析。结果 mpMRI-TRUS组穿刺活检阳性率为43.59%,TRUS组穿刺活检阳性率为33.07%,两组前列腺癌检出率差异无统计学意义。mpMRI-TRUS组中靶向穿刺的单针阳性率、靶向穿刺组织前列腺癌组织占比高于系统穿刺;mpMRI-TRUS组中靶向穿刺阳性率为38.46%,系统穿刺阳性率为42.30%,两者差异无统计学意义。结论 mpMRI-TRUS认知融合技术在前列腺穿刺活检能够以较少的穿刺针数检出前列腺癌,靶向穿刺能提供更多前列腺癌组织,降低前列腺癌穿刺活检的漏诊率。

Objective To explore the clinical application value of multi-parameter magnetic resonance imaging-transrectal ultrasound (mpMRI-TRUS) cognitive fusion technology to guide targeted prostate biopsy. Methods The research objects were patients suspected of prostate cancer from January 2018 to December 2020 and the patients were divided into mpMRI-TRUS group and TRUS group. All cases in the mpMRI-TRUS group underwent mpMRI examination before needle biopsy. The targeted lesions were determined according to the MRI results.And mpMRI-TRUS cognitive fusion targeted biopsy and system 10-needle biopsy were performed. Patients in the TRUS group only underwent a systematic 13-needle biopsy. The detection rate of prostate cancer between the two groups was compared. At the same time, the difference in the detection rate of targeted biopsy and systematic biopsy in the mpMRI-TRUS group was also compared. The pathological results of puncture were observed and analyzed. Results The positive rate of needle biopsy in the mpMRI-TRUS group was 43.59%, and the TRUS group was 33.07%. There was no significant difference in the detection rate of prostate cancer between the two groups. In the mpMRI-TRUS group, the single-needle positive rate and the proportion of prostate cancer tissue were higher than that of system puncture. The positive rate of targeted puncture in the mpMRI-TRUS group was 38.46%, and the system puncture was 42.30%. The difference between the two groups is not statistically significant. Conclusion The mpMRI-TRUS cognitive fusion technology can detect prostate cancer with fewer needles in prostate biopsy. Targeted biopsy puncture can provide more prostate cancer tumor tissues and reduce the missed diagnosis rate of prostate cancer biopsy.

目的 探讨在关节镜下膝关节前交叉韧带损伤重建术治疗的临床效果。方法 选取2018年3月—2020年3月之间我院接受住院治疗的80名膝关节前交叉韧带损伤患者作为研究对象。根据手术方式的不同,常规手术进行交叉韧带损伤的重建术治疗为常规组,关节镜下膝关节前交叉韧带损伤重建术治疗为研究组,每组各40名患者,比对两组的治疗效果。结果 通过数据得出常规组的膝功能评分(71.8±12.6)及膝功能不稳评分(13.2±1.6)要低于研究组膝功能评分(83.9±12.9)及膝功能不稳评分(19.3±2.3),差异有统计学意义(P＜0.05)。在术后疼痛评分上研究组(3.35±0.23)各项数据均优于常规组(4.35±1.69),差异有统计学意义(P＜0.05)。研究组并发症发生率仅为5%,常规组并发症发生率有17.5%,研究组数据远要低于常规组,差异有统计学意义(χ^<sup>2=5.178,P=0.023)。结论 在膝关节镜下前交叉韧带损伤重建术治疗可有效改善膝关节活动性、稳定性、有效减轻患者的疼痛感,减少并发症的发生,促进膝关节功能的康复。关节镜下进行膝关节前交叉韧带损伤重建术治疗具有临床推广和采纳的价值。

Objective To investigate the clinical effect of arthroscopic anterior cruciate ligament (ACL) reconstruction. Methods 80 patients with ACL injury in our hospital from March 2018 to March 2020 were selected as the research objects. According to the different surgical methods, patients underwent the traditional open surgery for cruciate ligament injury reconstruction treatment were selected as the control group,patients underwent arthroscopic anterior cruciate ligament injury reconstruction treatment were as the study group, 40 patients in each group, the treatment effect of the two groups were compared. Results The Lysholm score (71.8±12.6) and and Lysholm instability score (13.2±1.6) of the control group were lower than those of the study group (83.9±12.9 and 19.3±2.3), the differences were statistically significant (P <0.05). In the postoperative pain score, the study group (3.35±0.23) data was better than the control group (4.35±1.69), the difference was statistically significant (P <0.05). The incidence of complications in the study group was only 2.5%, and that in the control group was 17.5%, which was significantly lower than the control group, and the difference was statistically significant (χ²= 5.178, P= 0.023). Conclusion Arthroscopic anterior cruciate ligament reconstruction can effectively improve the activity and stability of knee joint, effectively reduce the pain of patients, reduce the occurrence of complications, and promote the rehabilitation of knee joint function. Arthroscopic anterior cruciate ligament reconstruction has the value of clinical promotion and adoption.