Research on the mining, sorting and transforming of traditional exercise prescription from the perspective of sports and health integration / 中华行为医学与脑科学杂志

Based on promoting the " sports and health integration" and with the aim of the positive role of traditional sports in promoting public health in an all-round and whole-cycle way, this paper uses the literature research method to explore the connotation of traditional sports in ancient Chinese books and literatures, such as " treating no diseases" , " treating mild diseases" , " treating desired diseases" and " treating existing diseases" . The traditional exercise prescription is interpreted from the modern language such as the amount of exercise and intensity, application time, role, standardization and matters needing attention, so as to provide the theoretical basis for the integration of traditional exercise prescription into grassroots health management by providing exercise promotion services for healthy, sub-healthy, sick and rehabilitated people.

Genetic variation and distribution characteristics of thalassemia in people of childbearing age in Hubei Province / 中华地方病学杂志

Objective:To study the genetic variation and distribution characteristics of thalassemia in people of childbearing age in Hubei Province, and to provide clinical basis for the local government decision-making departments to formulate and promote appropriate policies for prevention and control of thalassemia.Methods:Venous blood samples were collected from 44 849 people of childbearing age in hospitals in Hubei Province from May 13, 2019 to August 17, 2021. PCR-flow fluorescence hybridization and PCR+diversion hybridization were used to screen thalassemia genes. Spouses of those who tested positive were also tested for thalassemia genes. When both spouses carried the same type of thalassemia gene, the amniotic fluid of pregnant women was extracted for prenatal diagnosis and followed up.Results:Among the 44 849 people of childbearing age, 2 286 cases were diagnosed as thalassemia gene carriers through genetic testing, and the total detection rate was 5.10% (2 286/44 849). Among them, 1 488 cases were diagnosed as α-thalassemia, and the detection rate was 3.32% (1 488/44 849); 767 cases were diagnosed as β-thalassemia, and the detection rate was 1.71% (767/44 849); 31 cases were diagnosed as α-thalassemia combined with β-thalassemia, and the detection rate was 0.07% (31/44 849). The top three genotypes of α-thalassemia were -α 3.7/αα, -- SEA/αα, and -α 4.2/αα, accounting for 58.06% (864/1 488), 26.14% (389/1 488), and8.74% (130/1 488), respectively. The top three genotypes of β-thalassemia were β IVS-Ⅱ-654/β N, β CD41-42/β N, and β CD17/β N, accounting for 41.72% (320/767), 21.25% (163/767), and 16.04% (123/767), respectively. The main genotypes of α-thalassemia combined with β-thalassemia were -α 3.7/αα complex β IVS-Ⅱ-654/β N and -α 3.7/αα complex β CD41-42/β N, accounting for 29.03% (9/31) and 16.13% (5/31), respectively. A total of 59 people of childbearing age were conducted prenatal diagnosis, among fetus, there were 4 cases of severe thalassemia (2 cases of severe α-thalassemia, 2 cases of severe β-thalassemia), 5 cases of intermediate α-thalassemia, 5 cases of intermediate or severe β-thalassemia, 19 cases of mild thalassemia (8 cases of mild α-thalassemia, 11 cases of mild β-thalassemia), 13 cases of stationary α-thalassemia, and 1 case of stationary α-thalassemia combined with mild β-thalassemia, there were 12 cases without α-thalassemia or β-thalassemia genes. After follow-up, 4 cases of severe thalassemia, 2 cases of intermediate α-thalassemia, and 5 cases of intermediate or severe β-thalassemia were terminated pregnancy by the joint decision of both parents. Conclusions:In Hubei Province, the detection rate of thalassemia is high, and α-thalassemia is the main mutation type. The combination of thalassemia gene screening and prenatal diagnosis is of great significance in reducing the birth rate of children with thalassemia.

Evaluation of ICUs and weight of quality control indicators: an exploratory study based on Chinese ICU quality data from 2015 to 2020 / 医学前沿

This study aimed to explore key quality control factors that affected the prognosis of intensive care unit (ICU) patients in Chinese mainland over six years (2015-2020). The data for this study were from 31 provincial and municipal hospitals (3425 hospital ICUs) and included 2 110 685 ICU patients, for a total of 27 607 376 ICU hospitalization days. We found that 15 initially established quality control indicators were good predictors of patient prognosis, including percentage of ICU patients out of all inpatients (%), percentage of ICU bed occupancy of total inpatient bed occupancy (%), percentage of all ICU inpatients with an APACHE II score ⩾15 (%), three-hour (surviving sepsis campaign) SSC bundle compliance (%), six-hour SSC bundle compliance (%), rate of microbe detection before antibiotics (%), percentage of drug deep venous thrombosis (DVT) prophylaxis (%), percentage of unplanned endotracheal extubations (%), percentage of patients reintubated within 48 hours (%), unplanned transfers to the ICU (%), 48-h ICU readmission rate (%), ventilator associated pneumonia (VAP) (per 1000 ventilator days), catheter related blood stream infection (CRBSI) (per 1000 catheter days), catheter-associated urinary tract infections (CAUTI) (per 1000 catheter days), in-hospital mortality (%). When exploratory factor analysis was applied, the 15 indicators were divided into 6 core elements that varied in weight regarding quality evaluation: nosocomial infection management (21.35%), compliance with the Surviving Sepsis Campaign guidelines (17.97%), ICU resources (17.46%), airway management (15.53%), prevention of deep-vein thrombosis (14.07%), and severity of patient condition (13.61%). Based on the different weights of the core elements associated with the 15 indicators, we developed an integrated quality scoring system defined as F score=21.35%xnosocomial infection management + 17.97%xcompliance with SSC guidelines + 17.46%×ICU resources + 15.53%×airway management + 14.07%×DVT prevention + 13.61%×severity of patient condition. This evidence-based quality scoring system will help in assessing the key elements of quality management and establish a foundation for further optimization of the quality control indicator system.

Single-cell transcriptomic atlas of mouse cochlear aging

Progressive functional deterioration in the cochlea is associated with age-related hearing loss (ARHL). However, the cellular and molecular basis underlying cochlear aging remains largely unknown. Here, we established a dynamic single-cell transcriptomic landscape of mouse cochlear aging, in which we characterized aging-associated transcriptomic changes in 27 different cochlear cell types across five different time points. Overall, our analysis pinpoints loss of proteostasis and elevated apoptosis as the hallmark features of cochlear aging, highlights unexpected age-related transcriptional fluctuations in intermediate cells localized in the stria vascularis (SV) and demonstrates that upregulation of endoplasmic reticulum (ER) chaperon protein HSP90AA1 mitigates ER stress-induced damages associated with aging. Our work suggests that targeting unfolded protein response pathways may help alleviate aging-related SV atrophy and hence delay the progression of ARHL.

Single-nucleus profiling unveils a geroprotective role of the FOXO3 in primate skeletal muscle aging

Age-dependent loss of skeletal muscle mass and function is a feature of sarcopenia, and increases the risk of many aging-related metabolic diseases. Here, we report phenotypic and single-nucleus transcriptomic analyses of non-human primate skeletal muscle aging. A higher transcriptional fluctuation was observed in myonuclei relative to other interstitial cell types, indicating a higher susceptibility of skeletal muscle fiber to aging. We found a downregulation of FOXO3 in aged primate skeletal muscle, and identified FOXO3 as a hub transcription factor maintaining skeletal muscle homeostasis. Through the establishment of a complementary experimental pipeline based on a human pluripotent stem cell-derived myotube model, we revealed that silence of FOXO3 accelerates human myotube senescence, whereas genetic activation of endogenous FOXO3 alleviates human myotube aging. Altogether, based on a combination of monkey skeletal muscle and human myotube aging research models, we unraveled the pivotal role of the FOXO3 in safeguarding primate skeletal muscle from aging, providing a comprehensive resource for the development of clinical diagnosis and targeted therapeutic interventions against human skeletal muscle aging and the onset of sarcopenia along with aging-related disorders.

Influencing factors for positive results in early postpartum depression screening / 中华围产医学杂志

Objective:To investigate the risk factors associated with the positive results of early postpartum depression screening.Methods:This study involved 2 889 women who were negative in prenatal depression screening and delivered in the Maternal and Child Health Hospital of Hubei Province from 1 March to 30 April 2021. The Edinburgh Postnatal Depression Scale (EPDS) score, Adaptation Partnership Growth Affection Resolve (APGAR) score, and related living habits of the enrolled subjects were investigated on the 5th to 7th day after delivery. All patients were divided into two groups with 2 354 in the negative group (EPDS score<13) and 535 in the positive group (EPDS score≥13), based on the EPDS scores at 5 to 7 days postpartum. Chi-square test, trend Chi-square test, and rank-sum test were used for univariate analysis. Risk factors associated with positive depression screening were analyzed using binary logistic regression. Results:Univariate analysis suggested that there were statistically significant differences between the two groups in maternal personality, marital relationship, family functioning, sleep quality during pregnancy, smoking and drinking habits during pregnancy, prenatal EPDS score, mode of delivery, whether or not to have intrapartum cesarean section and forceps delivery, duration of labor in vaginal delivery, the proportions of puerperae and neonates who were transferred to intensive care unit (ICU), twin pregnancy, placenta previa, abnormal fetal position, premature birth, postpartum hemorrhage, and having three or more complication (all P<0.05). Binary logistic regression analysis suggested that extravertion ( OR=0.483, 95% CI:0.369-0.632), good marital relations ( OR=0.540, 95% CI:0.422-0.691) and good sleep during pregnancy ( OR=0.340, 95% CI:0.245-0.471) were protective factors for early postpartum depression, while introversion ( OR=1.632, 95% CI:1.275-2.088), poor marital relations ( OR=3.495, 95% CI: 1.946-6.276), moderate family dysfuntion ( OR=4.038, 95% CI:2.667-6.114) and severe family dysfunction ( OR=20.234, 95% CI: 2.446-167.364), smoking ( OR=2.071, 95% CI:1.315-3.263) and drinking during pregnancy ( OR=1.924, 95% CI:1.142-3.243), twin pregnancy ( OR=2.680, 95% CI:1.435-5.005), placenta previa ( OR=2.567, 95% CI:1.316-5.009), having three or more complications ( OR=1.876, 95% CI: 1.316-2.674), forceps delivery ( OR=3.043, 95% CI:1.185-7.816), intrapartum cesarean section ( OR=1.917, 95% CI:1.232-2.982), postpartum hemorrhage ( OR=1.668, 95% CI:1.069-2.604), and postpartum ICU admission ( OR=2.601, 95% CI: 1.112-6.086) were risk factors for early postpartum depression. Conclusions:Healthy living habits, and good mood contribute to decreasing postpartum depression in pregnant women. Education for parturients with serious illness or complications should be strengthened to help develop a proper understanding of the disease.

Effects of baicalin on depressive behavior and ERK/CREB protein in hippocampus of depression model mice / 中华行为医学与脑科学杂志

Objective:To explore the regulation effects of baicalin on the behavior as well as extracellular regulated protein kinase(ERK)and cAMP-response element binding protein(CREB) in chronic unpredictable mild stimulus(CUMS) model mice.Methods:Thirty ICR mice were randomly assigned to control(CON) group, model(CUMS) group, fluoxetine(FLU) group, baicalin high-dose(BA-H) group and baicalin low-dose(BA-L) group with 6 mice in each group.In addition to the CON group, the mice in the other four groups were modeled by CUMS method.The modeling was carried out for 42 days, and intragastric administration was carried out according to groups from the 21st day to the completion of modeling.After administration, the depression like behavior of mice was measured by sugar water preference test and water maze test.Western blot (WB) and reverse transcription polymerase chain reaction (RT-PCR) were used to detect the protein level and mRNA level of ERK and CREB in mouse hippocampus respectively.SPSS 21.0 was used for statistical analysis.After normal test and variance homogeneity test, one-way ANOVA was used for multi group comparison, and Tukey test was used for pairwise comparison.Results:Results from the sugar preference experiment showed that compared with CON group, the sugar preference rate of CUMS group was decreased ((82.88±2.00)%, (64.49±1.24)%, t=19.11, P<0.05). Compared with CUMS group, sugar preference rate in FLU group ((81.90±1.19) %), BA-H group (77.86±2.51)%) and BA-L group ((67.98±2.56)%) increased ( t=24.83, 11.68, 3.00, all P<0.05). The results of water maze test showed that compared with CON group, the number of crossing platform ((6.33±0.82), (1.83±0.75), t=9.93, P<0.05) and the target quadrant residence time ((46.83±4.78)s, (24.25±6.12)s, t=7.13, P<0.05) of mice in CUMS group were decreased, but the the escape latency was prolonged ((14.88±3.00) s, (70.70±4.77) s, t=24.26, P<0.05). Compared with CUMS group, the number of crossing platform ((5.00±0.89)times, (5.17±0.75)times and (3.33±0.82) times, t=6.64, 7.67, 3.31, all P<0.05), and the residence time in the target quadrant ((36.80±2.66) s, (36.82±5.62) s, (33.28±3.56) s, t=4.61, 3.71, 3.13, all P<0.05) in FLU group, BA-H group and BA-L group increased, but the escape latencies were shortened ((23.37±4.86) s, (34.83±4.72) s, (62.15±5.30) s, t=17.02, 13.10, 2.94, all P<0.05). WB results showed that compared with CON group, the expression of ERK protein ((1.00±0.15), (0.36±0.10), t= 6.26, P<0.05) and CREB protein((1.00±0.12), (0.29±0.03), t=10.32, P<0.05) in hippocampus of mice in CUMS group decreased.Compared with CUMS group, ERK protein in hippocampus of mice in FLU, BA-H and BA-L groups increased ((0.87±0.05), (0.77±0.08), (0.67±0.03), t=8.25, 5.7, 5.39, all P<0.05), and CREB protein in FLU, BA-H and BA-L groups were also increased ((0.90±0.12), (0.84±0.14), (0.62±0.04), t=8.94, 6.59, 12.25, all P<0.05). qPCR results showed that compared with CON group, ERK mRNA ((1.00±0.03), (0.41±0.10), t=9.78, P<0.05) and CREB mRNA ((1.00±0.08), (0.61±0.12), t=4.62, P<0.05) were decreased in CUMS group.Compared with CUMS group, ERK mRNA in hippocampus of mice in FLU, BA-H and BA-L groups were increased ((0.71±0.08), (0.69±0.03), (0.59±0.04), t=4.15, 4.65, 2.84, all P<0.05), CREB mRNA in FLU group and BA-H group were increased ((0.87±0.08), (0.86±0.07), t=3.14, 3.19, all P<0.05). Conclusion:BA can improve the depression-like behavior of CUMS model mice.The mechanism of action may be related to the regulation of ERK and CREB proteins.

Treatment progress of chemotherapy induced thrombocytopenia / 实用肿瘤学杂志

Chemotherapy induced thrombocytopenia( CIT) is a major dose-limiting hematologic toxicity with cancer patients.Aside from bleeding risk, thrombocytopenia limits chemotherapy doses and frequencies. While platelet transfusion is remain the elementary method for CIT,administration of platelet growth factors,such as recombinant human interleukin-11(rhIL-11),recombinant human thrombopoietin(rhTPO)and thrombopoie-tin receptor agonist(TPO-RA),are convenient and effective platelet-support strategies for patients receiving myelosuppressive chemotherapy.In addition,other cytokines and proximal splenic artery embolization( PSAE) are expected to be new clinical therapies.In this review,we summarize the existing data and approaches in the treat-ment progress of CIT.

Influence of blood pressure level on carotid intima-media thickness and plaque in elderly patients with coronary heart disease / 重庆医学

Objective To investigate the influence of blood pressure level on carotid intima‐media thickness (CIM T ) and plaque in elderly patients with coronary heart disease(CHD) .Methods 100 elderly CHD patients with hypertension admitted in our hospital from Jan .to Dec .2012 was collected .an epidemiological investigation was applied ,and blood pressure was measured .carotid CIMT and plaque were determined by colored Doppler ultrasound .multivariate linear regression model or Logistic regression model was used to analyze the effect of blood pressure on CIMT and plaque .Results A total of 100 subjects were enrolled .CIMT and plaque prevalence were (0 .7 ± 0 .1)mm ,45 .8% in 48 males and (0 .7 ± 0 .1)mm ,34 .6% in 52 females .the difference was statisti‐cally significant(χ2 =5 .609 ,P=0 .018) .multiple regression models showed that ,after adjusting relevant factors ,CIMT increased 0 .001 14 mm with SBP 1 mm Hg increase and CIMT increased 0 .001 18 mm with pulse pressure 1 mm Hg increase in males .Lo‐gistic regression model showed that the risk of plaque number >1 was higher in grade Ⅲhypertension compared to grade 1 hyper‐tension(OR= 2 .115 ,95% CI= 1 .128~ 3 .966 ,P= 0 .020) .Conclusion Elderly CHD patients with hypertension ,especially in males ,carotid CIMT increase while systolic BP and high pulse are high ,which cause the high risk of carotid artery plaque;hyperten‐sion is a independent risk factor for atherosclerosis in elderly CHD patients .

Research on the expression of Caveolin-1 with EGFR mutations in non-small cell lung cancer tissues and its clinical significance / 实用肿瘤学杂志

Objective This study aims to examine expression of Caveolin -1 in non smoking cell lung cancer(NSCLC)and to discusses the relationship between expression of Caveolin -1 and the Epidermal growth factor receptor mutations .Methods Immunohistochemical staining was used to determine the Caveolin -1 ex-pression and ARMS-qPCR was used to measure EGFR mutations in 40 cases of lung cancer tissue .The clinical pathological characteristics and correlations in patients were analyzed .Results The expression of Caveolin -1 in human lung cancer was significantly lower than that in normal lung tissue ,and negatively correlated with EGFR mutations ,which was statistically significant .Conclusion Caveolin -1 expression is negatively correlated with EGFR mutations in non-small cell lung cancer and related to the histologic type .Caveolin-1 may be a molecu-lar target for diagnosis and judgment of NSCLC .

Clinical and imaging features of neonatal chlamydial pneumonia / 中华放射学杂志

Objective To study the clinical and imaging features of chlamydial pneumonia in newborns.Methods Medical records,chest X-Ray and CT findings of 17 neonates with chlamydia pneumonia were reviewed.The age was ranged from 9.0 to 28.0 days with mean of ( 16.8 ± 5.8 ) days.There were 11males and 6 females.Sixteen were full term infants and one was born post term.All babies were examined with chest X-ray film,and 13 patients also underwent chest CT scan.Serologic test using immunofluorescence method for Chlamydia IgG and IgM antibodies were performed in all patients.Results All newborns presented with cough but without fever.Positive results of the serologic tests were demonstrated.Chest films showed bilateral hyperventilation in 10 patients,diffuse reticular nodules in 10 patients including nodules mimicking military tuberculosis in 7 patients,and accompanying consolidation in 9 patients.CT features included interstitial reticular nodules in 13 patients with size,density,and distribution varied.Subpleurul nodules ( 11patients) and fusion of nodules ( 10 patients ) predominated.Bilateral hyperinflation was found in 10 patients,which combined with infiltration in 12 patients,thickening of bronchovascular bundles in 10 patients,and ground glass sign in 5 patients.No pleural effusion and lymphadenopathy was detected in any patient.Conclusions Bilateral hyperinflation and diffuse interstitial reticular nodules were the most common imaging features of neonatal chlamydial pneumonia.The main clinical characteristic of neonatal chlamydial pneumonia is respiratory symptoms without fever,which is helpful to its diagnosis.

CT features of inflammatory myofibroblastic tumor in children / 中华放射学杂志

Objective To investigate the CT features of inflammatory myofibroblastic tumor in children. Methods Eighteen patients with inflammatory myofibroblastic tumor proven by surgery and pathology were examined with plain and contrast medium enhancement CT scan. Results Of 18 cases,16 had isolated lesions located at lung (n =4), mesentery (n =3), kidney (n =2) and trachea (n = 1 ),left main bronchus ( n = 1 ), right thoracic cavity ( n = 1 ), peritoneum cavity ( n = 1 ), pancreas ( n = 1 ),left thigh ( n = 1 ), prostate ( n = 1 ), superclvicle soft t tissue ( n = 1 ) , bladder ( n = 1 ). The other 2 cases were with multiple lesions on omentum and mesentery, and in intraperitoneal and side of split of right hepatic lobe, respectively. The CT findings of 18 cases included 16 solid mass with calcifications in 3 of them, and 2 solid-cystic mass. After contrast enhancement, moderate or marked homogeneous or heterogeneous enhancement were shown in all the solid parts of tumor on dynamic CT. Mass can compress surround great vessel and tube-like structure. On pathological examination, the tumor was mainly composed of spindleshaped fibrous cells and inflammatory cells, and the immunohistochemically staining for SMA was observed positively. Conclusion CT can provide specific information for diagnosis of inflammatory myofibroblastic tumor, yet definite diagnosis relies on pathology.

Imaging features of skeletal changes in children with Gaucher disease / 中华放射学杂志

Objective To discuss the imaging features of skeletal changes in children with Gaucher disease on X-ray and MRI images.Methods One hundred and nine children with Gaucher disease were enrolled in this study.They all received routine X-ray for spine with anterior-posterior(A-P)and lateral view and bilateral femurs with A-P view.Among them.18 patients received X-ray for pelvic with A-P view.14 patients received X-ray for left wrist with A-P view.and 14 patients received MRI scan for femur.The MRI scan included T1-weighted imaging,T2-weighted imaging and fat-suppressed T2-weighted imaging with short tau inversion recovery(STIR)sequence.The imaging features of the X-ray and MRI images were analyzed retrospectively.Results The most common feature is osteoporosis,which presented in 91 cases (83.5%).Besides this,decreased density of metaphysis occurred in 86 cases(78.9%).erlenmeyer flask deformity of metaphysis occurred in 89 patients(81.7%),thinner cortex occurred in 69 cases(63.3%),osteolytic destruction occurred in 31 cases(28.4%).pathological fractures occurred in 26 cases (23.9%),osteosclerosis occurred in 12 cases(11.0%).cystic degeneration of bone occurred in 16 cases (14.7%),and dislocation of the hip occurred in 4 cases.All 14 patients received MRI presented abnormal signals.Among them,4 patients presented low signal intensity both on T1-weighted and T2-weighted images in bone marrow;the other ten presented high signal intensity mixed in low signal intensity areas on T2-weighted and fat-suppressed T2-weighted images.Conclusions The imaging features of skeletal changes in children with Gaucher disease are of some characteristics,which could provide useful information for the clinical treatment.

Clinical application of multi-slice CT for congenital esophageal atresia and tracheoesophageal fistula in neonates: initial experience / 中华放射学杂志

Objective To assess the clinical value of MSCT in congenital esophageal atresia (EA) and tracheoesophageal fistula (TEF) of newborns. Methods Twenty neonates (17 boys and 3 girls) with a mean age of 4.6 days (1 day to 16 days) diagnosed EA and distal TEF underwent MSCT, and multiple planar volume reconstruction (MPVR) and three-dimensional transparency lung volume rendering (TL-VR) imaging were used. The initial diagnosis was made on esophagram by showing the catheter into a blind-ended esophageal pouch. The MSCT manifestations were compared with the surgical findings. Statistical analysis was performed by using SPSS 10.0. Paired-Samples t test and Pearson correlation analysis were used. Results MSCT clearly showed the distal esophageal pouches in all EA patients. The distance between the proximal and distal esophageal pouches determined by MPVR (0.15--3.10 cm, median 0.70 cm) and TL-VR (0.10--3.10 cm, median 0.82 cm) had no remarkable differences and correlated well with the surgical findings (r=0.87, P<0.01). MPVR revealed the orifice of the fistula in 13 TEF cases, while TL-VR only in 4. Conclusion MSCT is an useful and noninvasive imaging method for demonstrating congenital EA and distal TEF, and is highly valuable for surgical planning.

Influenza A H1N1 pneumonia: radiograph and CT features of children / 中华放射学杂志

Objective To explore the imaging features on chest radiograph and CT in children with Influenza A H1N1 pneumonia. Methods The imaging data of chest radiograph and CT in six children with Influenza A H1N1 pneumonia confirmed by real-time RT-PCR assay was retrospectively analysis. All patients had chest radiograph at first examination and 4 of them re-examed. One children took CT. Results All cases showed thick lung markings with varied degrees of pulmonary infiltration and interstitial changes on chest radiograph. Among them, 3 cases showed bilateral pulmonary infiltration and 3 cases showed infiltration in left lung; enlarged hilar was observed in 3 cases. The imaging findings of the pneumonia changed quickly during the follow-up accompanied with the improvement of clinical symptoms. The only one chest CT examination showed bilateral infiltration, multiple ground-glass opacities,small subpleural nodulars, right pleural effusion and lymphadenopathy of lung hila and mediastinum. Conclusions Chest radiograph and CT revealed certain typical imaging features in the children with influenza A H1N1 pneumonia. However, the final diagnosis of influenza A H1N1 pneumonia still should be made based on epidemiology and laboratory examination.

Anomalous origin of the left coronary artery from the pulmonary artery in infants: depiction by 64 multi-slice spiral CT / 中华放射学杂志

onary artery was turtuous and dilated in 4 cases. Conclusion 64 MSCT is emerging as an essential imaging tool for detecting early anomalous origin of the left coronary artery from the pulmonary artery with high resolution and significance.

MRI findings of spine: acute flaccid paralysis associated with enterovirus 71 infected hand-foot-mouth disease / 中华放射学杂志

Objective To investigate the characteristics of spinal MR images in acute flaccid paralysis(AFP) associated with enterevirus 71 infected hand-foot-mouth disease.Methods The spinal MR images of eight infants with AFP and positive EV71 cultures were analyzed during an outbreak of hand-foot-mouth disease in China in 2008.Results Acute paralysis was observed in one lower limb in 4 of the 8 patients,in four limbs in 2 patients,in one upper limb and both lower limbs in 1 patient,2 of the 8 patients also had brain stem encephalitis.Lesions were identified in anterior horn regions of spinal cord with hyperintensity on T2-weighted images and hypointensity on T1-weighted images.Location of the lesions included C3 to C7(1 case),T10 extending to conus medullaris(5 cases)and a combination of the above (2 cases).Five of the 8 patients presented with unilateral paralysis.Two of the 5 cases showed unilateral hyperintense lesions in anterior horn regions and the remaining 3 cases showed bilateral hyperintense lesions in anterior horn regions with a unilateral predominance.One of the 3 patients with bilateral lesions showed slight enhancement of anterior horn with prominent enhancement of ventral roots after intravenous injections of contrast medium.Three of the 8 patients with bilateral paralysis showed bilateral hyperintensity in both anterior horn regions.Conclusion MR is the imaging medality of choice for the detection of radiculomyelitis of AFP associated with EV71 infection.

Multi-slice spiral CT application in pulmonary sequestration in pediatric population / 中华放射学杂志

Objective To evaluate the role of multi-slice computed tomography (MSCT) in the diagnosis of pulmonary sequestration.Methods MSCT scans of 18 cases of pulmonary sequestration proved by surgery and pathology were reviewed.All cases underwent plain and contrast enhanced CT scanning,and retrospective reconstruction was made.Various reconstruction techniques in displaying the pulmonary sequestration and associated malformation were evaluated.Results Anomalous systemic arterial supply was discovered by transverse CT images in 12 cases.The reconstructed images using multiple methods showed the aberrant artery more clearly in all cases,including 6 cases in which the abnormalities were not confirmed by transverse CT.Drainage vein was revealed in 13 cases and lung heteroplasia with other malformation was demonstrated in 14 cases.Volume rendering (VR) reconstruction is the optimal choice for displaying the abnormal vessels and airway.Conclusion Enhanced MSCT with image post-processing can show the abnormal artery and vein of the pulmonary sequestration and the associated malformation,so it is the first choice in diagnosing pulmonary sequestration in pediatric population.

Value of 64-slice spiral CT angiography for follow-up of young children with coronary artery aneurysms due to Kawasaki disease / 中华放射学杂志

Objective To assess the value and feasibility of 64-slice spiral CT in diagnosis of coronary artery aneurysm in the follow-up of young children with previous Kawasaki disease. Methods Twelve boys (mean age 5.1 years) for follow-up (ranged 1.1 to 5.1 years) with known Kawasaki disease and coronary artery aneurysms underwent coronary CT angiography using 64-slice spiral CT.The number,location,shape and size of each coronary artery aneurysm were recorded and compared with those of echocardiography performed simutaneously. Results A total of 30 coronary artery aneurysms were identified with mean diameter of(7.5±3.8) mm,and mean maximum length of (12.4±9.1) mm.10 aneurysms were small in size,7 aneurysms were medium in size and 13 were giant aneurysms.Fourteen aneurysms were saccular,and the remaining 16 were fusiform. Among the aneurysms in left coronary artery,7 of them were located in the main branch,9 were located in the proximal segment of the anterior descending branch,4 were located at the middle segment of the anterior descending branch,and 2 were located in the circumflex branch.Among the aneurysms in right coronary artery,6 of them were located in the proximal segment,9 were located in the middle segment,and 4 were located at the distal segment.Nine of the aneurysms involved 2 segments of the coronary arteries,and one involved 3 segments.Six stenotic segments were found. Calcification was found in 5 aneurysms and 3 of them had thrombosis. Echocardiography failed to detect 8 aneurysms of small size and located in the middle or distal segments of the coronary arterys.Conclusion The 64-slice CT angiography proved valuable for monitoring young children with Kawasakidisease.

Analysis of the clinical and X-ray features of the air enema unreduced intussusception in children / 中华放射学杂志

Objective To analyze the X ray findings of enema unreduced (including 4 perforations ) intussusception so as to improve the knowledge about the difficulty of reduction by air enema or the risk of perforation. Methods Of the 552 cases, 506 cases were successfully reduced by air enema. The range of air pressure was 6.67 to 14.67 kPa(60～110 mm Hg). Forty six unreduced cases were cured by operation. The films were taken before and during the reduction period. X ray findings were analyzed compared with that of the operative pathology. Results (1)Abdominal plain films showed total obstruction in 26 cases and asctis in 4 cases; (2) Air enema showed big and lobular masses in 36 cases and the location of masses in distal part of colon in 22 cases; (3)Operation pathology: ileoilecolic intussusception in 35 cases, 15 cases with intestinal necrosis (including 4 perforation cases). In 3 cases, perforations were in the intussusceptum,the other in the intussuscipiens. Conclusion 92% of intussusceptions can be reducted by pressure of air enema. Complex intussusception, with intestinal necrosis and primary intussusceptum, are difficult to reduce, and these patients ought to be operated on time.