Objective To evaluate the value of magnetic resonance imaging in diagnosis aortic diseases.Methods Fourty-nine patients with aortic diseases including 20 cases aneurysm,26 cases aortic dissection and 3 cases pseudoaneurysm were examinated with MRI SE and 9 cases of them underwent FFE cine.Results All cases of both groups showed the part,extent and modality of aortic disease.And mensuration the size of aneurysm.Aortic dissection of 26 cases showed aortic double lumen,18 cases showed intimal flap.Entry tears were 7 cases respectively.The involvements of aortic branches were 20 among 9 cases (including 1 case aneurysm and 8 cases aortic dissection)aortic branches respectively.Conclusion Aortic aneurysm and intraaneurysmal architecture can be clearly showed on MRI.MR is one of the optimal imaging techniques in diagnosing aortic disease.

Histiocytoma, Malignant Fibrous ; complications ; Humans ; Kidney Neoplasms ; complications ; Liver Neoplasms ; complications

ObjectiveTo investigate the correlation between femoral distal medial torsion and patellofemoral joint malalignment and analyze the causes of patellofemoral joint disorders,which provide the new theory with clinical treatment.MethodsFrom May 2007 to June 2009,124 knees(95 cases) with patellofemoral joint disorders were enrolled in this study randomly.Each knee was scanned with CT in dynamic 20° -30° knee flax position.Femoral distal medial torsion angle (FMTA),patellar congruence angle (CA) and patellar tilt angle(PTA) were measured.The correlation between FMTA and CA or PTA was analyzed.Results FMTA ＜ 5° in 25 knees,≥5° in 99 knees,6 knees with trochlear dysplasia who were excluded.FMTA in 93 knees was 16.06° ± 5.68°,CA was 16.40° ± 5.48° and PTA was 19.59° ± 3.32°.The positive correlation was found between FMTA and CA when FMTA ＞ 10°through scatter diagram analysis (r =0.709,P ＜ 0.05 ).The positive correlation was found between FMTA and PTA when FMTA ＞10°( r =0.652,P ＜ 0.05),the positive trend declined when FMTA ＞ 27°.ConclusionsFemoral distal medial torsion is an important risk factor of patellofemoral joint malalignment.When FMTA ＞ 10°,FMTA and CA,PTA has positive correlation,but the positive tend between FMTA and PTA declines when FMTA ＞ 27°.

Objective:To explore the risk factors for early trauma-induced coagulopathy (TIC) following severe trauma in the elderly patients.Methods:A case-control study was used to analyze the clinical data of 317 elderly patients with severe trauma admitted to Second Affiliated Hospital of Zhejiang University School of Medicine between February 2015 and November 2020. There were 212 males and 105 females, aged 65-96 years [(72.6±6.8)years]. The patients were divided into TIC group ( n=32) and non-TIC group ( n=285) using the international normalised ratio (INR)>1.5 as the reference standard. Sex, age, trauma sites, injury severity score (ISS), Glasgow coma scale (GCS), first body temperature on admission, shock index(SI), first laboratory results of arterial blood gas, routine blood and coagulation, blood transfusion, usage of blood product, hospitalization days and clinical outcomes were compared between the two groups. Univariate and multivariate Logistic regression analysis were used to identify the risk factors for early TIC in patients with severe trauma. Results:Differences in sex, age, injuries to the face, chest and abdomen, GCS, first body temperature and hospitalization days were not statistically significant between the two groups (all P>0.05). The two groups showed statistical differences in the ratio of injuries to head, neck and extremities, ISS, SI, pH value, base excess (BE), lactate, hemoglobin (Hb), platelet (PLT) count (first detection, lowest level), activated partial thromboplastin time (APTT), thrombin time (TT), plasma fibrinogen (FIB), blood transfusion and usage of blood product and clinical outcomes (all P<0.05). According to the univariate analysis, injuries to the head, neck and extremities, ISS, first body temperature, SI, pH value, BE, lactate, Hb, PLT, APTT, TT and FIB were correlated with the occurrence of early TIC (all P<0.05). Multiple Logistic regressions analysis showed that SI ( OR=1.54, 95% CI 1.10-2.17, P<0.05), PLT ( OR=0.67, 95% CI 0.49-0.91, P<0.05) and FIB ( OR=0.56, 95% CI 0.40-0.78, P<0.01) were significantly correlated with the occurrence of early TIC. Conclusion:For elderly patients with severe trauma, higher SI, lower PLT count and lower concentration of FIB are independent risk factors for the incidence of early TIC.