Objective To analyze how the terminology associated with ultrasound reports affects the subsequent management of patients with isolated epididymal tuberculosis.Methods The data of 26 patients with isolated epididy-mal tuberculosis diagnosed by pathology or cytology were retrospectively analyzed.The terms associated with isolated epididymal tuberculosis fall into three mutually exclusive categories.Treatment-related outcomes included time to the first mycobacterium tuberculosis detection and time to the first anti-tuberculosis therapy.Results Among all the ultrasound reports,11 mentioned"epididymal tuberculosis",7 mentioned"calcification","swelling",and"uneven echo",and 8 did not contain the above ultrasound terms.Further analysis found that patients with"epididymal tuber-culosis"mentioned in the ultrasound reports significantly reduced the time to the first mycobacterium tuberculosis de-tection and the time to the first anti-tuberculosis treatment.Conclusions Terms such as"epididymal tuberculosis"and"calcification"in ultrasound reports are associated with shorter time to the first mycobacterium tuberculosis detec-tion and shorter time to the first anti-tuberculosis treatment.Accurate use of ultrasound terminology by the sonogra-pher based on ultrasound sonograms at different stages of the disease helps to improve the accuracy of the diagnosis of isolated epididymal tuberculosis.
Objective To analyze the fetal cardiac size by the two-dimensional speckle tracking technique(fetal-HQ package)and to explore the quantification of cardiac size remodeling in the small for gestational age(SGA)fetu-ses.Methods Prospective collection of singleton pregnancies at 28 to 39+6 weeks of gestation.The length,width and area of the four-chamber view and two ventricles were measured and calculated using fetalHQ in 453 low-risk and 210 SGA fetuses.Results After normalization for estimated fetal weight,the four-chamber view and right ventricular(RV)width and area were greater in SGA fetuses with normal umbilical arteries(UA)than in low-risk fetuses,P＜0.05.The top three ratios of cardiac size parameters＞95th％in SGA fetuses with normal UA were at least one seg-ment of RV width(35.0％),the mid segment of RV width(22.9％),and four-chamber view width(19.7％),which were greater than those of low-risk fetuses(all P＜0.05).Conclusions 1/3 of SGA fetuses present with an abnormal enlargement of the RV width(predominantly in the mid)earlier than the UA.
Objective: The noninvasive right ventricular pressure-strain loop (PSL) represents a novel method for the quantitative assessment of right ventricular myocardial function. Given that atrial septal defect (ASD) is a prevalent congenital heart anomaly associated with right ventricular volume overload, this study aimed to quantitatively assess the myocardial function of the right ventricle in ASD patients pre- and post-occlusion by noninvasive right ventricular PSL. Methods: This study included 36 patients diagnosed with secundum ASD group and 30 healthy adults (control group). We compared conventional right ventricular echocardiographic parameters, right ventricular strain, and myocardial work in the ASD group before occlusion, two days post-occlusion, and three months post-occlusion, with those in the control group. Results: Prior to and two days following occlusion, the ASD group exhibited higher right ventricular global work index (RVGWI), right ventricular global wasted work (RVGWW), and right ventricular global constructive work (RVGCW) compared to the control group (P < .05). Within the ASD group, post-occlusion, RVGWI, RVGCW, and RVGWW values were significantly reduced compared to pre-occlusion values (P < .001). Furthermore, RVGWI and RVGCW showed a significant decrease three months after occlusion compared to two days post-occlusion (P < .05). Multivariate regression analysis identified ASD diameter and pulmonary artery systolic pressure (PASP) as independent predictors of RVGWI (beta = .405, P < .001; beta = 2.307, P = .037) and RVGCW(beta = .350, P<.001; beta = 1.967, P = .023). Conclusions: The noninvasive right ventricular PSL effectively demonstrates the alterations in right ventricular myocardial function in ASD patients, pre- and post-occlusion. The metrics of right ventricular myocardial work (RVMW) offer a novel indicator for evaluating right ventricular myocardial function in these patients. Moreover, ASD diameter and PASP emerge as independent determinants of RVGWI and RVGCW.
Background: Advances in imaging have improved the detection rate of pancreatic cystic neoplasms (PCNs), but clinical management varies depending on the pathological type of PCNs, and thus accurate differential diagnosis is of considerable clinical significance. We conducted this study to identify the clinical and sonographic features of PCNs with significance for differential diagnosis and to compare the diagnostic accuracy of conventional ultrasound and conventional ultrasound combined with contrast-enhanced ultrasound (CEUS) for PCNs. Methods: From January 1, 2011, to December 31, 2022, a total of 100 patients with PCNs who underwent CEUS examination and were confirmed to have PCNs by postoperative pathology in West China Hospital of Sichuan University were included in this study. Results: Of the clinical characteristics of PCNs, age and gender were found to be important differential diagnostic features. Moreover, communication of the lesion with the main pancreatic duct on conventional ultrasound and CEUS images was a critical feature in the differential diagnosis of intraductal papillary mucinous neoplasm (IPMN). The size of the lesion, the thickness of the cyst wall and the number of septa in conventional ultrasound images, the uniformity of the cyst wall thickness in CEUS images, and the enhancement pattern in the arterial phase were significant features for the differential diagnosis of serous cystic neoplasm (SCN). Cyst wall thickness and uniformity of the cyst wall thickness in conventional ultrasound images and cyst wall thickness and septa thickness in CEUS images were important features in the differential diagnosis of mucinous cystic neoplasm (MCN). The size and internal components of the lesion on conventional ultrasound images, internal components of the lesion, and the enhancement pattern in the arterial phase and rim enhancement on CEUS images were the key features in the differential diagnosis of solid pseudopapillary neoplasm (SPN). Conventional ultrasound combined with CEUS demonstrated significantly greater accuracy than did conventional ultrasound alone in the differential diagnosis of PCNs Conclusions: PCN types differ in their clinical and ultrasound features. Conventional ultrasound combined with CEUS can better distinguish between different pathological types of PCNs than can conventional ultrasound alone.
The main cause of distal biliary malignant obstructive jaundice (DBMOJ) is the stricture of the extrahepatic biliary tract by malignant tumors, including pancreatic head and uncinate process cancer, low-grade cholangiocarcinoma, duodenal cancer, papillary duodenal cancer and other malignant tumors. The most effective treatment is radical pancreaticoduodenectomy. However, preoperative obstructive jaundice can affect the patient’s liver function and blood coagulation function, increase local inflammation and oedema, and make surgery more difficult. Patients with severe obstructive jaundice require preoperative biliary drainage, which can be achieved by various methods, including ultrasound endoscopic biliary drainage (EUS-EBD) and endoscopic retrograde biliary drainage (ERBD). The latter is mainly divided into endoscopic nasobiliary drainage and endoscopic biliary stent. Some patients underwent percutaneous transhepatic biliary drainage (PTBD) when ERBD and EUS-EBD failed. In this study, we aimed to identify PTBD in DBMOJ and to further investigate the role of the puncture pathway in DBMOJ. The relationship between PTBD and bile duct internal diameter was confirmed by analysing and collating clinical data. In this study, DBMOJ was grouped according to bile duct internal diameter and liver function was used as an indicator to examine the improvement in liver function with PTBD in patients undergoing DBMOJ. Analysis of puncture complications showed that PTBD puncture was safe. DBMOJ with different bile duct internal diameters had different rates of liver function improvement after PTBD. The right-side approaches had significantly lower alanine aminotransferase (ALT) and alanine transaminase (AST) than the left-side approaches. This study showed that PTBD for DBMOJ is associated with a low complication rate and good reduction of jaundice. Liver function recovery was faster in patients with DBMOJ treated with PTBD in the right-sided approach compared with the left-sided approach. PTBD is an effective tool to be used in patients who have failed ERBD and EUS-EBD.
The purpose of this study is to develop and validate the potential value of the deep learning radiomics nomogram (DLRN) based on ultrasound to differentiate mass mastitis (MM) and invasive breast cancer (IBC). 50 cases of MM and 180 cases of IBC with ultrasound Breast Imaging Reporting and Data System 4 category were recruited (training cohort, n = 161, validation cohort, n = 69). Based on PyRadiomics and ResNet50 extractors, radiomics and deep learning features were extracted, respectively. Based on supervised machine learning methods such as logistic regression, random forest, and support vector machine, as well as unsupervised machine learning methods using K-means clustering analysis, the differences in features between MM and IBC were analyzed to develop DLRN. The performance of DLRN had been evaluated by receiver operating characteristic curve, calibration, and clinical practicality. Supervised machine learning results showed that compared with radiomics models, especially random forest models, deep learning models were better at recognizing MM and IBC. The area under the curve (AUC) of the validation cohort was 0.84, the accuracy was 0.83, the sensitivity was 0.73, and the specificity was 0.83. Compared to radiomics or deep learning models, DLRN even further improved discrimination ability (AUC of 0.90 and 0.90, accuracy of 0.83 and 0.88 for training and validation cohorts), which had better clinical benefits and good calibratability. In addition, the information heterogeneity of deep learning features in MM and IBC was validated again through unsupervised machine learning clustering analysis, indicating that MM had a unique features phenotype. The DLRN developed based on radiomics and deep learning features of ultrasound images has potential clinical value in effectively distinguishing between MM and IBC. DLRN breaks through visual limitations and quantifies more image information related to MM based on computers, further utilizing machine learning to effectively utilize this information for clinical decision-making. As DLRN becomes an autonomous screening system, it will improve the recognition rate of MM in grassroots hospitals and reduce the possibility of incorrect treatment and overtreatment.
PURPOSE:The study aims to assess the diagnostic performance of convention ultrasound (US), Angio PLUS microvascular US imaging (AP), and shear-wave elastography (SWE) in differentiating malignant and benign non-mass-like (NML) breast lesions. METHODS:Sixty patients aged 21-70 years with 60 NML lesions were recruited. All patients were examined by conventional US, AP, and SWE. According to the pathological results, the performances of the multimodal US strategies were analyzed, while the diagnostic efficiency of AP and SWE in serial and parallel was also explored. RESULTS:Age, together with posterior features, microcalcification, and architectural distortion were considered significant in evaluating NML lesions. The sensitivity, specificity, PPV, NPV, and accuracy of AP combined SWE in serial were 72.7, 96.3, 96.0, 74.3, and 83.3%, while those in parallel were 90.9, 63.0, 75.0, 85.0, and 78.3%, respectively. The two in serial indicated the highest specificity, PPV, accuracy, and AUC value, which could increase the true positive rate and reduce the chance of misdiagnosis, while the two in parallel exhibited the best sensitivity and NPV, which might serve as an effective tool to avoid excessive or nonessential biopsy. CONCLUSION:The multimodal US strategies could provide precise and reliable diagnostic results for NML breast lesions.
目的 探讨中国超声甲状腺影像报告和数据系统(C-TIRADS)、二维剪切波弹性成像(2 D-SWE)、应变弹性成像及其联合应用于 4 类甲状腺微小结节(TMN)良恶性评估的价值. 方法 分析 366 例患者的 373 个 4 类TMN(最大径≤10 mm)的C-TIRADS和弹性成像特征.计算 C-TIRADS、弹性成像及联合应用的诊断效能. 结果 C-TIRADS、病灶整体剪切波速度(Vs-whole-mean)、病灶最硬处剪切波速度(Vs-stiffest-mean)与应变比独立诊断4 类TMN的良恶性受试者工作特征(ROC)曲线下面积(AUC)分别为 0.727、0.861、0.846 与 0.664.C-TIRADS 联合 Vs-whole-mean或 Vs-stiffest-mean诊断的 AUC分别为 0.874 与 0.868,诊断效能均优于 C-TIRADS独立诊断且差异均有统计学意义(Z=4.309,P＜0.05;Z=3.725,P＜0.05);两种联合诊断方法间差异无统计学意义(Z=0.286,P＞0.05)且两者之间有较高的一致性(χ2 =220,P＜0.05). 结论 C-TIRADS可作为鉴别 4 类TMN良恶性的首选方法,2D-SWE可作为辅助诊断工具,两者联合应用可提高鉴别 4 类TMN良恶性的诊断效能.
目的 分析卵巢甲状腺肿的临床特征及超声表现.方法 回顾性分析 19 例经手术治疗后病理证实为卵巢甲状腺肿患者的临床资料及超声表现,包括位置、大小、形态、边界、有无分隔、回声特点及血流信号等特征.结果 19 例患者共计 19 个卵巢甲状腺肿病灶,其中 3 例合并囊性成熟性畸胎瘤,3 例伴滤泡上皮异型增生,1 例为囊性成熟性畸胎瘤伴卵巢甲状腺肿性类癌.超声表现:附件区囊性包块 4 例、附件区囊实混合性包块(囊性为主)10 例、附件区囊实混合性包块(实性为主)5 例.结论 卵巢甲状腺肿超声声像图常表现为单侧多房囊性或囊实混合性肿瘤,边界较清晰,伴有不规则增厚分隔.囊实混合者囊内可见结节状中等或高回声突起伴丰富血流信号,或类圆形"白球样"特征性高回声团,临床结合患者腹水体征及 CA125、甲状腺球蛋白的升高可考虑卵巢甲状腺肿的可能.
目的 采用斑点追踪技术评价左心室射血分数(LVEF)正常的完全性左束支传导阻滞(CLBBB)患者的左心室扭转特征.方法 选择射血分数正常的CLBBB患者 43 例作为病例组,健康受试者 32 例作为对照组.按照 QRS时限将病例组分为窄QRS组(120 ms≤QRS≤150 ms)及宽 QRS组(QRS＞150 ms).应用斑点追踪技术测量左心室扭转功能参数[心尖、基底旋转角度峰值(PAR、PBR)、扭转角度峰值(Ptw)和扭转速度峰值(Ptv)]及左心室解旋功能参数[等容舒张期解旋比例(Untw)、解旋率(Untw-R)和解旋速度峰值(Puv)].结果 与对照组相比,病例组Ptw、PAR、PBR、Untw和 Untw-R显著减低;与窄 QRS组比较,宽 QRS组Ptw减低(P＜0.05).相关性分析显示 CLBBB 患者 Ptw 与 QRS 时限呈负相关(r=-0.386,P=0.012);PAR 与 LV-GLS 呈正相关(r= 0.342,P=0.035);PBR与 Untw和 Untw-R呈正相关(r=0.349,P=0.027;r=0.406,P=0.009),与 E/e'呈负相关(r=-0.347,P=0.026).结论 LVEF正常的CLBBB患者左心室扭转及解旋功能减低,QRS时限影响左心室扭转,宽 QRS患者左心室扭转减低更显著.左心室心尖扭转角度与收缩功能有关,而基底扭转角度与舒张功能有关.
目的 研究智能测量左室收缩功能的解剖 M型超声心动图人工智能(AI)模型.方法 从现有儿童心脏病超声心动图库中选择 400 例不同年龄段及不同心血管疾病的儿童超声心动图解剖 M型图像进行人工标测,建立 AI模型.另外纳入 100 例年龄和病种与训练集相匹配的儿童病例的解剖 M型图像作为测试集,对模型进行测试.分析 AI模型与有经验超声医师相比测量左室收缩功能相关参数的准确度和一致性.结果 AI模型与超声医师测量的左室射血分数(LVEF)绝对值差 7.09%±5.86%(62.21%±12.38%vs 65.77%±13.02%).超声医师测量 LVEF1 的观察者内差异绝对值是 9.30%±7.97%,观察者间是 8.10%(2.0%,8.75%).AI 模型测量的LVEF与超声医师测量的LVEF1 高度相关(r=0.780,P<0.001).AI模型与超声医师测量的其余左室相关参数同样高度一致,包括左室舒张末容积(LVEDV,r=0.978)、左室收缩末容积(LVESV,r=0.977)、左室舒张末内径(LVEDD,r= 0.983)、左室收缩末内径(LVESD,r=0.963)、左室短轴缩短率(FS,r=0.740),P<0.001.以 LVEF1<50%定义为左室收缩功能减低,AI模型测量的 LVEF预测左室收缩功能减低的 ROC曲线下面积(AUC)是 0.872,P<0.05.结论 超声心动图解剖 M型 AI模型能够准确测量儿童的左室收缩功能相关参数,可用于识别儿童左室收缩功能减低.
目的 基于临床及超声特征构建 Logistic回归诊断模型鉴别不同类型非哺乳期乳腺炎(NPM)与浸润性导管癌(IDC). 方法 回顾性收集经病理证实的不同类型NPM患者 95 例[导管周围炎(PDM)10 例,肉芽肿性小叶性乳腺炎(GLM)85例],IDC患者 127 例,对比分析 3 组患者的临床及超声特征,构建Logistic回归模型鉴别诊断不同类型NPM与IDC,并通过计算受试者工作特征(ROC)曲线下面积(AUC)评估模型效能. 结果 乳头凹陷在PDM与 GLM组间及PDM与 IDC组间均具有统计学意义,但在 GLM与 IDC组间无统计学意义;年龄、肿块直径、触痛、溢乳、病灶纵横比、钙化及 RI在PDM与 IDC或 GLM与 IDC组间比较均具有统计学意义;皮肤红肿、病灶发生部位、边缘成角、边缘毛刺、衰减及血流分级在GLM与IDC组间具有统计学意义.对单因素分析具有统计学意义的临床及超声特征进行 Logistic 回归分析并构建诊断模型,PDM 与 IDC 联合诊断未得出特征性因素,GLM 与 IDC 的联合诊断模型(AUC)为 0.976,灵敏度为 95.5%,特异度为 90.6%,准确度为 93.5%. 结论 基于临床与超声特征构建的 Logistic回归模型对鉴别 GLM与 IDC具有良好的诊断价值,可有效辅助医师降低 GLM的误诊及减少 IDC的漏诊.
目的 探讨超声联合Ki-67 预测新辅助化疗(NAC)后三阴性乳腺癌腋窝淋巴结病理完全缓解的临床价值. 方法 回顾性分析经新辅助化疗后行手术治疗的三阴性乳腺癌患者 190 例.所有患者在接受 NAC前和 NAC治疗 2 周期、4周期后行超声检查,依据术后腋窝淋巴结病理结果分为病理完全缓解(pCR)组和非 pCR组.比较 pCR组和非 pCR组 NAC前及NAC治疗 2 周期、4 周期后超声及Ki-67 参数的差异,行二元 Logistic回归分析确定淋巴结 pCR 的独立预测因素,绘制受试者工作特征(ROC)曲线评估预测淋巴结 pCR的诊断效能. 结果 年龄,淋巴结短径,NAC治疗 2 周期、4 周期后肿瘤长径变化率(ΔD2 和ΔD4)及淋巴结短径变化率(ΔS2 和ΔS4),N分期及Ki-67 参数在 pCR组与非 pCR组间差异有统计学意义(P＜0.05),将两组间P＜0.20 的参数纳入多因素二元Logistic回归分析,结果显示淋巴结短径、ΔS4、N 分期及 Ki-67 是三阴性乳腺癌腋窝淋巴结 pCR 的独立预测因素(OR= 0.918,P=0.018;OR=1.035,P=0.046;OR=0.392,P＜0.001;OR=1.022,P=0.008),上述参数联合诊断的 ROC 曲线下面积(AUC)为 0.829(95%CI 0.768～0.890),灵敏度为 77.8%,特异度为 75.6%. 结论 联合淋巴结短径、ΔS4、N分期及Ki-67 对预测 NAC治疗后三阴性乳腺癌腋窝淋巴结 pCR有一定的临床应用价值.
目的 探讨携 IRF5-siRNA的靶向超声纳泡在超声作用下介导基因转染,对易损斑块 M1 型巨噬细胞极化的靶向调控作用. 方法 构建携 IRF5-siRNA靶向超声纳泡,检测其基本表征并观察其靶向结合能力.建立 M1 型巨噬细胞,将其分为 PBS组、IRF5-siRNA质粒组、IRF5-siRNA-PP1-NBs组、US+IRF5-siRNA-PP1-NBs 组.qRT-PCR 法检测各组 IRF5 mRNA 表达;Western bolt(blot)法检测各组iNOS、Arg1 蛋白表达;流式细胞术检测巨噬细胞亚型. 结果 制得的超声纳泡平均粒径为(304.48±59.34)nm,Zeta电位为(32.75±4.02)mV;大量纳泡聚集在 M1 型巨噬细胞周围;与其他组相比,US+IRF5-siRNA-PP1-NBs组 IRF5 mRNA表达显著降低,M1 型巨噬细胞标志物iNOS、CD86 表达降低,M2 型巨噬细胞标志物 Arg1、CD206 表达增高. 结论 成功构建了携 IRF5-siRNA靶向超声纳泡,在超声介导下可有效实现 M1 型巨噬细胞基因转染并调控其表型,提示其潜在的促进斑块稳定性价值.
患者女性,54 岁,体检发现 "肝脏占位性病变 3天"就诊,既往无乙肝、肝硬化及家族史等.查体:腹软,平坦,无腹痛、皮肤巩膜黄染等.实验室检查:肿瘤标志物 CEA、CA19-9、AFP、CA125 均为阴性.
目的 分析胎盘间叶发育不良的超声图像及临床特征. 方法 回顾性分析经病理证实的 8 例胎盘间叶发育不良的超声图像,总结胎盘间叶发育不良的超声特征. 结果 8 例患者超声图像异常最早孕周为妊娠 9 周,最晚为妊娠 13 周.超声异常表现主要为胎盘厚度的改变(8/8)及胎盘胎儿面蜂窝状回声(7/8).彩色多普勒血流成像显示,胎盘回声异常区域内血流信号:少量血流信号(4/8),无血流信号(4/8).随孕周进展胎盘厚度及胎盘回声异常区域先增大,至妊娠 19 周胎盘厚度逐渐减小,胎盘回声异常区域范围缩小,甚至消失.超声筛查检出胎儿脐膨出合并双足多趾 1 例,余 7 例胎儿结构未见明显异常. 结论 胎盘间叶发育不良的胎盘回声改变为位于胎盘胎儿面蜂窝状回声,随孕周进展可伴有不同的声像图特征,尽早规律的超声检查,有利于胎盘间叶发育不良的早期诊断.
男性患儿,12 岁,2 年前健康查体超声发现肝占位:肝右叶近被膜处见大小约 2.54 cm×1.77 cm 稍强回声结节,边界清晰,形态不规则,内回声不均,彩色多普勒示结节内部及其周边点条状血流信号,见图 1.
目的 探讨胎儿心脏定量分析(fetal HQ)技术评估辅助生殖技术(ART)对胎儿心脏功能影响的应用价值. 方法 选取 59 例单胚胎移植(SET)受孕胎儿作为 SET组、21 例双胚胎移植(DET)受孕胎儿作为DET组,96 例自然受孕胎儿作为对照组,随访妊娠结局至 2023 年 4 月.应用 fetal H Q软件分析胎儿四腔心动态图,自动计算得出左右心室(LV、RV)整体应变(GS)、室间隔壁应变(SWSt)、游离壁应变(FWSt)、基底-心尖部短轴缩短率(Basal-Apical FS).对比 3 组的一般临床资料、常规超声心动图参数、fetal HQ参数及不良妊娠结局. 结果 ①与对照组相比,SET及DET组孕妇年龄更大(P＜0.05),其他临床特征及常规超声心动图参数差异无统计学意义(P＞0.05).②SET 组胎儿较对照组 RV-GS、LV-SWSt、RV-FWSt、RV-Basal-Apical FS 低,差异有统计学意义(P＜0.05);DET组的 RV-GS、RV-SWSt、RV-FWSt、RV-Basal-Apical FS较对照组低(P＜0.05);SET组与 DET组之间 RV-GS、LV-FWSt、RV-Basal-Apical FS存在差异(P＜0.05).③孕妇年龄、体质量指数(BMI)、孕次、产次、孕周及胎儿预估体质量与 fetal H Q参数无相关性(P＞0.05). 结论 fetal H Q可以早期识别 ART 胎儿的心肌收缩功能障碍.单胚胎移植胎儿心脏功能及妊娠结局均优于双胚胎移植胎儿.
患者女,67 岁,因 "发现双侧小腿肿物并伴渐进性增大及疼痛 3 个月余"入院.查体:体温36.6 ℃,血压 135/80 mm Hg.实验室检查:降钙素、白介素、C反应蛋白均升高.双下肢腓肠肌触及大小分别约 5 cm×2 cm×1 cm、5 cm×2 cm×2 cm、5 cm×2 cm×1 cm的隆起型肿物,边界清楚,活动度差,轻度压痛,皮温皮色正常.
目的 分析新生儿及婴儿副脾梗死的超声图像特征及其临床价值. 方法 回顾性分析 8 例超声提示副脾梗死的新生儿及婴儿,并与临床及病理对照,总结其超声图像特点及临床价值. 结果 以脾脏实质为参照,8 例(8/8,100%)患儿超声均发现肿块回声低于脾脏,表现为囊性,囊壁稍高回声且厚薄不均,囊内呈低回声,夹杂短线样高回声.7 例(7/8,87.5%)患儿肿块形态是椭圆形,1 例为蚕豆形.8 例(8/8,100%)肿块内部均无血流信号.治疗结果,2 例经手术病理证实为副脾扭转梗死.6 例临床诊断为副脾梗死,保守治疗后肿块逐渐缩小. 结论 新生儿及婴儿副脾梗死超声具有典型特征.超声能较准确地为临床提供影像学诊断依据,并可在保守治疗随访中作为首选检查方式.
