Publications by authors named "Si-Shi Tang"

Background: Understanding the impact of aortic regurgitation (AR) on hypertensive patients' hearts is important.

Purpose: To assess left ventricular (LV) strain and structure in hypertensive patients and investigate the relationship with AR severity.

Study Type: Retrospective.

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Objective: To analyze the detection rate, susceptibility to antibiotics, and carbapenemase types of carbapenem-resistant Enterobacteriaceae (CRE) strains in the clinical samples of a hospital and to provide support for the prevention, control and treatment of CRE-related infections.

Methods: Clinical specimens were examined according to the operating procedures of bacteriological tests. Species identification and drug susceptibility testing were performed on the isolated strains.

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Background: Mitral regurgitation may occur when hypertension causes left ventricular (LV) and left atrial (LA) remodeling. However, its role in LA function in hypertensive patients remains unclear.

Purpose: To explore how mitral regurgitation affects LA function in hypertension and to investigate atrioventricular interaction in hypertensive patients with mitral regurgitation.

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Objectives: Hypertension is one of the leading risk factors for cardiovascular disease. Mitral regurgitation (MR) is a heart valve disease commonly seen in hypertensive cases. This study aims to assess the effect of MR on left ventricle (LV) strain impairment among essential hypertensive cases and determine factors that independently impact the global peak strain of the LV.

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Purpose: To investigate the different imaging features of contrast-enhanced multidetector-row-computed tomography (MDCT) for distinguishing between silicosis and tuberculosis involving the mediastinal lymph nodes.

Methods: 86 silicosis patients and 61 tuberculosis patients with mediastinal lymphadenopathy based on contrast-enhanced MDCT were included. The enhanced patterns, anatomical distribution and calcification features of the enlarged lymph nodes were retrospectively compared between the groups using the Pearson chi-square test or Fisher's exact test.

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Objectives: To investigate the molecular features of spinal muscular atrophy (SMA) related genes in SMA patients of Han nationality of southwest of China.

Methods: We collected 62 unrelated patients of SMA and 50 unrelated healthy individuals in this study.The copy numbers of survival motor neuron gene () and uronal-apoptosis inhibitory protein gene () were measured by using multiplex ligation-dependent probe amplification (MLPA).

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Objectives: To determine the correlation between fms-like tyrosine kinase 3 gene () expression and -internal tandem duplication (ITD) mutations in acute myeloid leukemia patients,and the association between expression of gene and clinical and laboratory features of patients.

Methods: The expression of mRNA in bone marrow (BM) leukemic cells of 128 acute myeloid leukemia (AML) patients was measured by real-time PCR.The patients were divided into two groups using the 35% expression as a cut-off point.

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Objectives: To explore the mechanisms of imipenem resistance in and the transmission of Carbapenemase-2(-2) gene in species.

Methods: The imipenem resistant and were isolated in the West China Hospital of Sichuan University in 2009/2010 and 2012/2013. Their minimal inhibitory concentration (MIC) was determined by agar dilution method.

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Objective: To determine the enhancement patterns and anatomic distribution of enlarged mediastinal lymph nodes using contrast-enhanced multi-detector CT (MDCT) in patients with sarcoidosis.

Methods: We reviewed the contrast-enhanced MDCT features of 39 patients with pathologically or clinically diagnosed sarcoidosis, including the size, morphology, attenuation, enhancement patterns, and anatomic distribution of the enlarged mediastinal lymph nodes.

Results: Of the 39 patients, 85% showed homogenous enhancement and 15% showed homogenous mixed with peripheral enhancement.

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Article Synopsis
  • The study aimed to identify distinguishing features of earthquake-related crush extremity fractures compared to non-earthquake-related fractures using digital radiography and CT scans.
  • Researchers analyzed data from 623 earthquake victims and 316 non-earthquake-related fracture victims, focusing on the types and locations of fractures.
  • The findings revealed that earthquake-related fractures were more likely to involve multiple extremities and bones, particularly in the lower limbs, indicating a need for improved emergency response strategies in earthquake-prone areas.
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Background: The anatomic features of left atrial diverticula (LAD) are still unclear in patients with atrial fibrillation (AF). The purpose of this study was to evaluate the prevalence and morphological characteristics of LAD in patients referred for radiofrequency transcatheter ablation of AF with dual-source computed tomography.

Methods And Results: Dual-source computed tomography images were obtained in 214 patients referred for AF catheter ablation and 214 sex- and age-matched control subjects.

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Purpose: The purpose of this study was to determine the differential characteristics on MRI between tuberculosis and lymphoma in abdominal lymph nodes.

Materials And Methods: We conducted a retrospective analysis for the counter, size, signal intensity, enhancement patterns, and anatomic distribution of lymph nodes in 57 consecutive patients with documented tuberculosis (28 patients; 49.1%) and newly diagnosed, untreated lymphoma (29 patients; 50.

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Aim: To investigate the features of crush thoracic trauma in Sichuan earthquake victims using chest digital radiography (CDR).

Methods: We retrospectively reviewed 772 CDR of 417 females and 355 males who had suffered crush thoracic trauma in the Sichuan earthquake. Patient age ranged from 0.

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Aim: To investigate the features of abdominal crush injuries resulting from an earthquake using multidetector computed tomography (MDCT).

Methods: Fifty-one survivors with abdominal crush injuries due to the 2008 Sichuan earthquake underwent emergency non-enhanced scans with 16-row MDCT. Data were reviewed focusing on anatomic regions including lumbar vertebrae, abdominal wall soft tissue, retroperitoneum and intraperitoneal space; and types of traumatic lesions.

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Objective: To determine the features of earthquake-related pelvic crush fractures versus non-earthquake fractures with digital radiography and multidetector row computed tomography.

Methods: One hundred and sixty-seven survivors with pelvic crush fractures in the 2008 Sichuan earthquake were entered in our study as the earthquake-related group (139 underwent digital radiography, 28 underwent multidetector row computed tomography); 70 victims with non-earthquake pelvic fractures were enrolled into this study as the non-earthquake group (54 underwent digital radiography, 16 underwent multidetector row computed tomography). Data were reviewed retrospectively between groups, focusing on anatomic distributions, status of pelvic bone fractures, numbers of pelvic bones involved, and classification of pelvic ring fractures according to the Tile classification system.

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Purpose: The aim of this study was to evaluate the common features of earthquake-related injuries using radiography and computed tomography.

Materials And Methods: We retrospectively reviewed the radiography and multidetector computed tomography features of 1491 patients injured in 2008 Sichuan earthquake. We categorized patients by age group (<35, 35-64, and ≥ 65 years) and time to imaging.

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The aim of this study was to investigate features of abdominal earthquake-related crush traumas in comparison with non-earthquake injury. A cross sectional survey was conducted with 51 survivors with abdominal crush injury in the 2008 Sichuan earthquake, and 41 with abdominal non-earthquake injury, undergoing non-enhanced computed tomography (CT) scans, serving as earthquake trauma and control group, respectively. Data were analyzed between groups focusing on CT appearance.

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Background: Plaque morphology directly correlates with risk of embolism and the recently developed dual-source computed tomography angiography (DSCTA) may help to detect plaques more precisely. The aim of our study was to evaluate the prevalence and morphology of carotid and cerebrovascular atherosclerotic plaques in patients with symptomatic type 2 diabetes mellitus (DM) by DSCTA.

Methods: From July 2009 to August 2010, DSCTA was prospectively performed in 125 consecutive patients with symptomatic type 2 DM.

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Article Synopsis
  • Coronary artery disease (CAD) is a serious complication in patients with type 2 diabetes mellitus (DM), and this study aims to analyze its characteristics using coronary CT angiography (CTA).
  • Among 113 diabetic patients, the study found that multi-vessel disease was more prevalent than single vessel disease, with the left anterior descending artery being the most affected area.
  • The majority of plaques were calcified and mild narrowing of vessels was the most common, though there was no significant difference in the severity of stenosis between genders.
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