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Objective:To explore the predictive value of ultrasound-based radiomics for liver metastasis in pancreatic neuroendocrine tumors (pNEN).Methods:A retrospective analysis was conducted on clinical, pathological, and ultrasound data of 269 pNEN patients confirmed by pathology at Tianjin Medical University Cancer Institute and Hospital from January 2012 to June 2022, including 94 patients with liver metastasis and 175 without liver metastasis. The regions of interest (ROI) were delineated on the maximum diameter section of the tumor using ITKSNAP software, and radiomics features were extracted using Pyradiomics. Radiomics features with an intra-group correlation coefficient greater than 0.90 were retained, and the optimal features were selected using the maximum relevance minimum redundancy (MRMR) algorithm. The dataset was randomly divided into a training set and a validation set in a ratio of 7∶3, and the random forest algorithm (Rfs) was used to predict pNEN liver metastasis. Three models were constructed, including the clinical ultrasound model, the radiomics model, and the comprehensive model that combined clinical ultrasound and radiomics features. The predictive performance of different models for pNEN liver metastasis was analyzed using the ROC curve, and the predictive performance of different models was compared using the Delong test.Results:A total of 874 features were extracted from the ROI, and 12 highly robust radiomics features were retained for model construction based on inter- and intra-observer correlation grading and feature selection. The area under curve(AUC), sensitivity, specificity, and accuracy of the radiomics model, the clinical ultrasound model, and the comprehensive model for predicting liver metastasis in pNEN patients were 0.800, 0.574, 0.789, 0.714; 0.780, 0.596, 0.874, 0.777; and 0.890, 0.694, 0.874, 0.810, respectively. The Delong test showed that the comprehensive model had the best predictive performance, with an AUC superior to that of radiomics model ( Z=3.845, P=0.000 12) and clinical ultrasound model ( Z=3.506, P=0.000 45). Conclusions:The radiomics model based on ultrasound has good performance in predicting liver metastasis in pNEN, and the comprehensive model that combines clinical ultrasound and radiomics features can further improve the predictive performance of the model.
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OBJECTIVE@#To assess the association of single nucleotide polymorphisms (SNPs) of STK39 gene with response to hydrochlorothiazide among ethnic Han Chinese patients with essential hypertension.@*METHODS@#In total 118 patients with essential hypertension were recruited. All participants had received six weeks of treatment with hydrochlorothiazide 25 mg daily. Blood pressure (BP) and heart rate (HR) were measurement every 2 weeks. Genotypes of STK39 rs3754777 and rs6749447 were determined using a SNaPshot technique.@*RESULTS@#A significant difference was found in ΔSBP between individuals with rs3754777 CC, CT and TT and those with rs3754777 CC and CT-TT (P0.05). Relative risk analysis showed that STK39 rs3754777 was significantly associated with BP response to hydrochlorothiazide (OR=0.416, 95%CI=0.189-0.918, P<0.05).@*CONCLUSION@#Polymorphisms of STK39 rs3754777 may be associated with BP response to hydrochlorothiazide among ethnic Han Chinese with essential hypertension.
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Humans , Asian People , Essential Hypertension , Genotype , Hydrochlorothiazide , Polymorphism, Single Nucleotide , Protein Serine-Threonine Kinases , GeneticsABSTRACT
Objective To expore the correlation between resting heart rate(RHR)and carotid atheroscle-rosis in middle-aged and elderly hypertention. Methods A total of 1043 middle-aged and elderly essential hyper-tention were selected and divided into 3 groups according to the RHR:< 70(Group A,n = 406),70～79(Group B,n=364),and≥80 beats/min(Group C,n=273). The patients′fasting blood-glucose(FBG),blood lipids, homocysteine (Hcy) and serum creatinine (SCr) levels were measured. Carotid artery intima-media thickness (CAIMT) and carotid artery diameter (CADIA) were measured by ultra-sonography ,and carotid artery plaques were investigated. Bi-variate correlation analysis was adopted to analyze the correlation between RHR and CAIMT , CADIA. Logistic regression analysis was employed to analyze the influential factors in carotid artery plaques. Mean-while,sub-group analysis of different ages was performed. Results The detection rates of carotid artery plaques in the Group A,B and C were 59.1％,63.7％and 69.6％respectively. Differences in detection rates of carotid artery plaques among 3 groups showed statistical significance(P<0.05). RHR(OR 1.165,95％CI 1.094～1.482,P=0.037) was a risk factor of carotid artery plaques. Significant positive correlations were found between RHR and CAIMT ,CADIA (r = 0.115 ,0.123;P = 0.005 ,0.003). Conclusions RHR was closely related with carotid artery plaques,CAIMT,and CADIA in middle-aged and elderly hypertention. RHR can be recognized as a predic-tive factor of carotid atherosclerosis in middle-aged and elderly hypertention.
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Objective To expore the correlation between resting heart rate(RHR)and carotid atheroscle-rosis in middle-aged and elderly hypertention. Methods A total of 1043 middle-aged and elderly essential hyper-tention were selected and divided into 3 groups according to the RHR:< 70(Group A,n = 406),70～79(Group B,n=364),and≥80 beats/min(Group C,n=273). The patients′fasting blood-glucose(FBG),blood lipids, homocysteine (Hcy) and serum creatinine (SCr) levels were measured. Carotid artery intima-media thickness (CAIMT) and carotid artery diameter (CADIA) were measured by ultra-sonography ,and carotid artery plaques were investigated. Bi-variate correlation analysis was adopted to analyze the correlation between RHR and CAIMT , CADIA. Logistic regression analysis was employed to analyze the influential factors in carotid artery plaques. Mean-while,sub-group analysis of different ages was performed. Results The detection rates of carotid artery plaques in the Group A,B and C were 59.1％,63.7％and 69.6％respectively. Differences in detection rates of carotid artery plaques among 3 groups showed statistical significance(P<0.05). RHR(OR 1.165,95％CI 1.094～1.482,P=0.037) was a risk factor of carotid artery plaques. Significant positive correlations were found between RHR and CAIMT ,CADIA (r = 0.115 ,0.123;P = 0.005 ,0.003). Conclusions RHR was closely related with carotid artery plaques,CAIMT,and CADIA in middle-aged and elderly hypertention. RHR can be recognized as a predic-tive factor of carotid atherosclerosis in middle-aged and elderly hypertention.
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Background and purpose:Epithelial ovarian cancer has the highest mortality rate of gynecologic cancers and overall survival rates have improved little in the last 20 to 30 years. CXXC ifnger protein 5 (CXXC5) plays an important role in AML (acute myeloid leukemia) and MDS (myelodysplasia). However, little is known about its clinical signiifcance and biological function in epithelial ovarian cancer. This study aimed to investigate the expression of the CXXC5 in ovarian cancer and the effect of the CXXC5 on ES-2 cell proliferation. Methods:①The alteration of CXXC5 in cancer genomics data of TCGA (Cancer Genome Atlas) was analyzed.②The CXXC5 protein in the tissue chips was detected containing 37 benign ovarian cyst and 173 malignant tumor samples. The relationship between the expression of the CXXC5 with the clinicopathological features of patients with ovarian cancer was analyzed by SPSS software;③The cells with the highest CXXC5 expression quantity from 5 ovarian cancer cells were selected by re-al-time quantitative PCR (qRT-PCR) and Western blot.④ES-2 cells with shRNA stable transfection were construted us-ing the strategy of lentivirus infection and analyzed cell proliferation by cell counting kit-8(CCK8). Results:①Through the TCGA database, CXXC5 ampliifcation was found in 7 of 563 cases.②The CXXC5 expression in ovarian malignant carcinoma (39.3%) was higher than that in benign ovarian cyst (13.5%, P=0.003), the histologic type was highly asso-ciated with CXXC5 (43%in serous, 22.9%in mucinous, 23.5%in endometrioid, 67%in clear cell, P=0.014) and there was a signiifcant correlation between CXXC5 and lymph node metastasis (positive vs negative, P=0.022).③The ES-2 cells with shRNA stable transfection had a growth disadvantage (P<0.05). Conclusion:The CXXC5 gene might have an advantage in proliferation of epithelial ovarian carcinoma and be expected to become the biomarker of poor prognosis.
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Objective To evaluate the diagnostic value of thick-slab single-shot turbo spin-echo (SSTSE)T2 ?-weighted sequence in magnetic resonance fetography (MRF)for fetal abnormalities.Methods 328 of 1 990 pregnant women with the diagnosis of fetal congenital defects on prenatal ultrasound screening or chromosome examination were randomly selected,and 338 fetuses were ob-tained.These fetuses were scanned by conventional magnetic resonance imaging (MRI)and MRF.The diagnostic results from the two MR methods were compared.Results Six hundred and twenty-four lesions were detected by MRF.The primary diagnosis based on conventional MRI was changed for 14 lesions (2.2%).New findings were identified for 48 fetal lesions (8.4%)and 66 ma-ternal lesions.However,78 fetal lesions could not to be identified by MRF.MRF could increase the diagnostic confidence for fetal lesions with high water content (56.1% of the lesions).Conclusion MRF can yield more precise information for fetal extremities, fluid-filled cavities,pathological hydrops and cystic lesions.As an additional aid to the conventional multi-slice T2-weighted se-quence.
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Sixty patients with ulcerative colitis (UC),including 28 males and 32 females were enrolled in the study.Color Doppler ultrasonographic scans were performed and the disease activity was estimated base on the Sourtherland score index (DAI).On the sonography the colon with active inflammatory disease showed bowel wall thickening,alteration of layers structure or even discrimination and increased vascular signals.Using DAI as the gold standard,the sensitivity,specificity,positive predictive value,negative predictive value and accurate rate for ultrasonography in assessment of UC activity were 90.0％ (36/40),75.0％ ( 15/20),87.8％ (36/41),78.9％ (15/19),85.0％ (51/60),respectively.In conclusion,Color Doppler ultrasonography provides a convenient technique for assessment of bowel involvement and inflammatory activity in ulcerative colitis with high sensitivity and accuracy.
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Objective To evaluate the clinical application value of pathological diagnosis by using ultrasound-guided percutaneous needle core biopsy (PNCB) for cervical lymph lesions.MethodsTwo hundred and ten patients with cervical lymph lesions underwent ultrasound-guided PNCB,and pathological diagnosis were made based on core biopsy material.The results of study were concluded by comparing the pathological diagnosis from core biopsy of the lymph nodes with those from excision biopsy. Results There were 210 patients underwent ultrasound- guided PNCB,98.6％ (207/210) cases of core biopsies yielded adequate material at first time and 92.9％ (195/210) cases of those had pathologic diagnosis.The accuracy of ultrasound-guided PNCB in differentiating benign from malignant lymphadenopathy was 99.4％ ( 194/195 ).The diagnostic accuracy of metastatic tumor and lymphoma by ultrasound-guided PNCB was 96.4％ (135/140) and 86.1％ (31/36),respectively.Only 67.7％ (21/31) patients with lymphoma could be classified by ultrasound-guided PNCB.ConclusionUltrasound-guided PNCB in patients with neck lymph lesions is a safe,convenient and quick procedure that has a high diagnosis accuracy.Ultrasound-guided PNCB can replace the open surgery for neck lymph node diagnostic method.Due to the complicated and diverse pathologic performance,lymphoma should be cut by open surgery to confirm the diagnosis and classification.
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Objective To evaluate contrast-enhanced ultrasonography (CEUS) in diagnosis of small hepatocellular carcinoma (SHCC) ( ≤ 2. 0 cm) with liver cirrhosis after contrast-enhanced CT (CECT) examination. Methods Forty five patients with liver cirrhosis received CECT and CEUS examinations before operation or needle biopsy and the diagnosis was confirmed by pathological examination.CEUS and CECT findings of 51 liver space-occupying lesions from 45 patients were retrospectively analyzed.Results Among all 51 lesions detected CEUS and CECT found 49 and 35, respectively. The typical characteristics of SHCC were "fast-in and fast-out" and "fast-in and slow-out". The sensitivity of CEUS and CECT in diagnosis of SHCC was 88. 9% (32/36) and 69. 4 % (25/36) respectively ( x2 = 3. 02, P =0. 08);the diagnostic accuracy was 84. 3 % (43/51 ) and 56. 9% (29/51 ) respectively ( x2 = 1.46, P =0. 22). Among 16 lesions missed by CECT, 12 were detected by CEUS. Conclusions CEUS and CECT show the similar diagnostic rate for typical SHCC ,however, CEUS is more sensitive for atypical lesions. With high time resolution, CEUS have advantages for follow-up study of benign liver lesions.
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Objective To evaluate retrospectively the difference and complementary of contrastenhanced ultrasound (CEUS) and contrast-enhanced magnetic resonance (CEMR) in early diagnosis and differential diagnosis of small hepatocellular carcinoma (SHCC)(≤2.0 cm) in patients with liver cirrhosis.Methods Forty-five patients with space-occupying lesions in cirrhotic livers were included, who were referred to CEUS and CEMR before operations. Numbers as well as diagnosis results were recorded respectively,and all cases were confirmed by pathological examination. Results Seventy-five lesions were found after CEUS and CEMR,with 69 and 58 respectively. Forty-one lesions were diagnosed pathologically as SHCC by surgery or needle biopsy. Overlapping exited in enhanced mode between CEUS and CEMR.Most SHCC displayed as mode Ⅰ "fast-in and fast-out" and mode Ⅱ "fast-in and slow-out" in both examination,which can be considered as a reliable criterion. The diagnostic accuracy of CEUS and CEMR was 77. 3% (58/75) and 62. 7% (44/75) respectively (0. 50＜ P ＜0. 75). Differences of the diagnostic accuracy of SHCC with atypical enhanced mode between CEMR and CEUS were statistically significant.Conclusions There is no significant difference of diagnostic accuracy of SHCC between CEMR and CEUS.Both of these two examing procedure have its own advantages for atypical lesions, which accounts for its diagnostic difference of small SHCC and benign lesions.
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Objective To study the change of interleakin-18 (IL-18) in patients of pregnancy induced hypertension syndrome(PIH) and its correlation with endothelint-1 (ET-1). Methods Serum levels of IL-18 and plasma levels of ET-1 in 47 PIH patients and 30 normal pregnancy women were measured with ELISA and RSA respectively. Results (1)Serum IL-18 of PIH group (M=43.76 ng/L) was significantly higher than that of normal pregnancy group (M=37.975 ng/L) , H=42.845,P