Objective To investigate the prevalence of postpartum thyroiditis (PPT) in three different iodine intake areas, to explore the relationship between iodine intake and PPT. Methods Panshan, Zhangwu and Huanghua are three different iodine intake areas. The median urinary iodine concentration were 103 ?g/L,374 ?g/L and 614 ?g/L, respectively. One hundred and nineteen lactational women were investigated during the first year postpartum. Thyroid stimulating hormone(TSH), free thyroxine(FT_4), free triiodothyronine(FT_3 ), thyroid peroxidase antibody(TPOAb) and thyroglobulin antibody(TGAb) were determined with immulite method, and UI was determined by As-Ce 4+ catalytic spectrophotometry method. Results The prevalence of PPT is 11.8%, 10.1% of subclinical PPT, whereas 1.7% of clinical PPT. There was statistically significant difference in the frequency of PPT in three areas (Panshan 5.6%, Zhangwu 23.1% and Huanghua 6.8%, P

The article reviews the change of thyroid function in the women during pregnancy and the development of fetal thyroid function and introduces the principles of treating pregnancy with hyperthyroidism or hypothyroidism.

Objective To describe CT and MRI imaging findings of retinal hamartomas with tuberous sclerosis and evaluate their clinical value.Design Retrospective case series.Participants 7 patients of tuberous sclerosis complex(TSC) who have ocular lesions found with CT and MRI examination.Methods 7 patients with tuberous sclerosis were diagnosed by clinical data and head CT.The size,morphology,density and enhancing situation of the retinal lesions were observed with CT and MRI,as while as with direct or indirect fundoscopy.Main Outcome Measures CT and MRI features of ocular lesions.Results 7 cases displayed intracranial calcification and/or non-calcified tubercles,situating in subendyma(7 cases,accounting for 100%) by head CT.Orbital CT and MRI showed 4 cases (57.1%) of flat retinal hamartomas 3 cases(42.9%) of retinal lobular and nodular hamartomas,2 cases(28.6%) scattered calcification patches in hamartoma,and 2 cases(28.6%) of nanophthalmos.The lesions displayed unenhancement on contrast-enhanced MR images in 7 cases(100%).There was 1 case(14.3%) of progressive retinal astrocytic hamartoma.Conclusion The examination of CT and MRI may find the bigger retinal hamartomas,which can play a very important role at the diagnosis with the help of whole brain examination. For progressive retinal astrocytic hamartoma,systemic evaluation with CT and MRI can provide evidence for choosing appropriate thera- pies.

Objective To assess surgical strategies and its therapeutic effect on treating tumors invading of the great vessels. Methods 23 patients underwent tumor resection along with reconstruction of great vessels from Jan. 2001 to Dec. 2005 were retrospectively reviewed. Results 19 cases (82.6%) experienced radical resection along with reconstruction of great vessels, 4 cases (17.4%) underwent palliative resections. 20 cases (86.9%) were followed up by various imaging examination methods. 4 cases (17.4%) died perioperatively and 7 cases (30.4%) had complications in perioperative period. Up to Aug. 2005, the postoperative survival times in patients were from 1.5 to 59.0 months. 3 cases (15.0%,3/20) existed more than 48 months, 4 cases (20.0%,4/20) more than 36 months, 6 cases (30.0%,6/20) more than 24 months, 9 cases (45.0%,9/20) more than 12 months and 12 cases(55.0%,11/20)more than 6 months. No complications related to vascular graft occlusion and tumor recurrence next to grafts occurred in these patients. In 2 cases appeared partial thrombosis in grafts in perioperatively. Conclusion Combination of radical resection of tumor and reconstruction of great vessels could extend survival time and improve quality of life in selected patients with tumor invading thoracic and abdominal great vessels.

Objective To study the genetic susceptibility in patients with postpartum thyroiditis(PPT)by genotyping their human leukocyte antigen(HLA)-DP and -DQ alleles.Methods The polymerase chain reaction-sequence based typing(PCR-SBP)method was used to analyze the distribution of HLA-DPA1,HLA-DPB1,HLA-DQA1 and HLA-DQB1 alleles among 52 PPT patients(31 clinical patients,21 subclinical patients)and 82 healthy controls.Compare the allele frequencies between various patient groups and the control population.Results There was no significant difference between patient group and control group.Conclusion Perhaps PPT is not associated with HLA-DP and HLA-DQ alleles.

To investigate the therapeutic effects of recombinant humanized anti-HER2 antibody (Herceptin) on Her-2/neu-overexpressing metastatic human breast cancer, 7 patients with Her-2/neu-overexpressing metastatic human breast cancer were involved in this study. The results indicated that the therapeutic effective rate was 71. 4%. CR. PR, SD. PI) were seen in 2. 3, 1, 1 cases, respectively. No side reactions were observed. The results revealed that the therapeutic effect of Herceptin is intimately linked to Her-2/neu expression of breast cancer.

Objective To assess the diagnostic value of delayed CT contrast enhancement patterns in hilar cholangiocarcinoma based on two phased dynamic incremental CT scanning. Methods Fifty two patients with suspected hilar tumor and bile duct obstruction underwent spiral CT scan. The scan time for one revolution of the X ray tube was 1 second. To elucidate the delay time for optimal imaging, all proved cholangiocarcinoma with delayed (6、8、10、15、20、30 minutes) post equilibrium phase contrast enhanced CT scans were acquired with unenhanced, dynamic contrast enhanced, and delayed images. Degree of delayed enhancement was compared with that of surrounding liver parenchyma. Results (1) 8～15 minutes after IV injection of contrast material was the delay time for optimal imaging. (2) Of 29 cholangiocarcinomas, the early CT showed hypoattenuating (lower than that of liver parenchyma) in 23 tumors, isoattenuating (equal to that of the liver) in 4 tumors, and hyperattenuating (higher than that of liver) in 2 tumors. The delayed CT scan showed isoattenuating in 8 tumors, hyperattenuating in 21 tumors, and no hypoattenuating. Most of delay imaging of hilar cholangiocarcinoma may appear hyperattenuating ( U=-4.307 3, P

Objective To describe CT and MRI imaging findings of retinal hamartomas with tuberous sclerosis and evaluate their clinical value. Design Retrospective case series. Participants 7 patients of tuberous sclerosis complex (TSC) who have ocular lesions found with CT and MRI examination. Methods 7 patients with tuberous sclerosis were diagnosed by clinical data and head CT. The size, morphology, density and enhancing situation of the retinal lesions were observed with CT and MR.I, as while as with direct or indi-rect fundoscopy. Main Outcome Measures CT and MRI features of ocular lesions. Results 7 cases displayed intraeranial calcification and/or non-calcified tubercles, situating in subendyrna (7 cases, accounting for 100%) by head CT. Orbital CT and MRI showed 4 cases (57.1%) of flat retinal hamartomas 3 cases (42.9%) 9f retinal lobular and nodular hamartomas, 2 cases(28.6%) scattered calcification patches in hamartoma, and 2 cases (28.6%) of nanophthalmos. The lesions displayed unenhancement on contrast-enhanced MR images in 7 cases(100%) . There was 1 case (14.3%) of progressive retinal astrocytic hamartoma. Conclusion The examination of CT and MRI may find the bigger retinal hamartomas, which can play a very important role at the diagnosis with the help of whole brain examination. For progressive retinal nstrocytic hamartoma,systemic evaluation with CT and MRI can provide evidence for choosing appropriate thera-pies. (Ophthalmol CHN, 2009, 18: 257-260)

Objective To evaluate global left ventricular(LV) strain of patients with chronic renal failure(CRF) by three-dimensional speckle tracking imaging(3D-STI) and discuss the possible association between global peak strain and ejection fraction of LV.Methods The study includes 22 patients in the renal failure period,25 patients with uremia (pre-dialysis),and 20 healthy controls.Global peak longitudinal strain (GPSL),global peak area strain(GPSA) and global peak radial strain(GPSR) were measured by 3D-STI.Then possible association between GPSL,GPSA,GPSR and LVEF were discussed by the Pearson correlation analysis.Results The GPSL,GPSA,GPSR were statistically different in the control group,patients in the renal failure period and patients with uremia.There were significant differences between groups(F =13.28,4.65,4.68,P ＜ 0.01) as following,all of GPSL,GPSA,GPSR were lower in uremia group compared with control group [q =7.48(GPSL),4.19(GPSA),4.72(GPSR),P ＜0.01],GPSL was lower in renal failure group compared with control group [q =4.9 (GPSL),P ＜0.01].The Pearson correlation analysis revealed GPSL,GPSA,GPSR were strongly associated with LVEF(r =-0.679,-0.781,0.719,P ＜0.01).Conclusions In patients with CRF,the global peak strain can reveal the systolic function of left ventricle and the global peak longitudinal strain can recognize systolic dysfunction more sensitively.

Objective:To explore the lactate metabolism in brain tissue of the mice with early acute hypoxia-ischemia injury,and to provide data support for 9.4T 1 H-NMR spectroscopy in detecting the lactate level clinically.Methods:Eighty Kunming mice were randomly divided into sixteen groups (0 s,20 s,40 s,60 s,2 min,4 min, 6 min,8 min, 10 min, 12 min, 14 min, 16 min, 18 min,and 20 min)according to the duration of hypoxia-ischemia (n=5).The changes of lactate levels were detected by 9.4T 1 H-NMR spectroscopy. Results:After the initiation of hypoxia-ischemia injury,the lactate level began to increase rapidly to the highest value of (6.89 ± 0.34)μmol·g-1 at 20 s,then started to decline quickly from 40 s to 2 min,and eventually decreased to a stable level of (4.85±0.36)μmol·g-1 until 6 min.Compared with control group,the levels of lactate in brain tissue of the mice in hypoxic-ischemic groups were increased (P <0.01).Conclusion:40 s of acute hypoxia-ischemia may be the lactate cerebral neuron threshold during the anaerobic glycolysis. 9.4T1 H-MRS can provide the exact time window for detecting the lactate metabolism.