BACKGROUND:Recent studies have found that femoral neck angleαin patient with femoral neck hernial fossa increased significantly. However, whether the femoral neck hernia fossa can be used as imaging diagnostic indicator for femoroacetabular impingement syndrome remains controversial. OBJECTIVE:To evaluate the association between alpha angle and herniation pit in asymptomatic hip joints, influencing factors of the above indexes, and to provide evidence for the diagnosis of hip impingement syndrome. METHODS:Adults with asymptomatic hip joints from September 2013 to December 2015 were retrospectively studied. Alpha angles were measured on oblique axial MRI images. The incidence and size of herniation pit were determined by MRI. Size measures, prevalence, and statistical analyses were conducted regarding its association with age, gender, laterality (right or left hip). Intra-and inter-observer consistency was determined by intra-class correlation coefficient. RESULTS AND CONCLUSION:(1) 105 patients with asymptomatic hips were included, and 185 sides of hip MRI images were obtained. The range of age was 18-80 years old. The prevalence of herniation pit in asymptomatic hips was 21.6%. (2) The range of alpha angle was 27.6°–65.0°. Alpha angles of hip joints of 17 cases were ≥ 55°. (3) There was no association between alpha angle≥55° and the size of herniation pit (P>0.05). The prevalence of herniation pit was not correlated with age, gender and affected side (P=0.160, 0.157, 0.110). Inter-observer consistency of alpha angle was 0.523 between first measurements of first vs. second observer, respectively. Intra-observer consistency of alpha angle was 0.654, respectively. (4) There is no association between alpha angle ≥ 55 degrees and presence of herniation pit or demographic variables (age, gender and affected side). The presence of herniation pit and the increased alpha angle need to be interpreted with caution. Clinical symptoms and other examinations should be used in the diagnosis of hip impingement syndrome.

0.05 ).However,there were more eccentric plaques in ruptured than in non-ruptured groups ( P

Objective To explore the value of intravascular ultrasound (IVUS) in diagnosing plaque disruption and arterial thrombosis.Methods Balloon-induced arterial wall injury and then feeding on a diet of 1% cholesterol for 8 weeks, 17 New Zealand white rabbits were established as atherosis(AS) models.At the end of the eighth week, the resulting plaques were incubated transluminally with recombinant adenovirus carrying a p53 transgene. After two weeks, the rabbits underwent pharmacological triggering with Russell viper venom(RVV) and histamine. IVUS was used before and after the rabbits were triggered pharmacologically. The value of IVUS in diagnosing plaque disruption and arterial thrombosis was derived by comparing the results of IVUS with pathologic findings. Results IVUS found that plaques disruption and thrombosis occurred in 12 of the 14 rabbits, totally 18 thrombi. A histologically confirmed plaque disruption and intraluminal thrombus were visualized in 12 of the 14 rabbits, totally 20 thrombi. By comparing the results of IVUS with histopathology, the true positive rate was 85% and false negative rate was 15%, the sensitivity and specificity of IVUS were respectively 85% and 67%. IVUS data correlated well with the histopathology regarding thrombus length(r=(0.73),P(0.05)). Conclusions IVUS can detect plaque disruption and arterial thrombosis.

Humans ; Myocardial Ischemia ; etiology

We present a case of subarachnoid hemorrhage induced by chronic suppurative otitis media and discuss the possible mechanism here. Chronic suppurative otitis media is a common suppurative inflammation of middle ear, which can cause sorts of extracranial and intracranial complications in the situation of lower resistance or higher virulence. However, the condition of subarachnoid haemorrhage caused by chronic suppurative otitis media is quite rare. According to this case and previously published articles, we consider that meningitis may be the main reason of subarachnoid hemorrhage induced by chronic suppurative otitis media.
Chronic Disease ; Ear, Middle ; Female ; Humans ; Meningitis ; complications ; Middle Aged ; Otitis Media, Suppurative ; complications ; Subarachnoid Hemorrhage ; complications

Objective To explore the efficacy of transurethral nephroscopic pneumatic lithotripsy combined with ultrasound lithotripsy for bladder calculus.MethodsBy using transurethral F20.8 nephroscope and EMS LithoCaster,we performed transurethral nephroscopic pneumatic lithotripsy and ultrasound lithotripsy on 69 patients with bladder calculus(63 men and 6 women)between October 2005 and May 2008.The diameter of the calculi was ranged from 1.5 to 6.0 cm.Among the patients,42 had one stone in the bladder,while 27 had multiple calculi.Fifty-five patients were complicated with BPH,14 had neurogenic bladder,and 4 showed bladder diverticulum with stones in situ.Pneumatic frequency was set at 8-12 Hz,and ultrasonic energy was 50%-60%.For the patients with BPH electrovaporization ablation was plused.ResultsAmong the 69 patients,68 were cured in one session.The mean operation time was 25 minutes(15 to 40 minutes).One patient was converted to open surgery because of rupture of the bladder during the procedure.No patient had urethral stricture,infection,or massive hemorrhage during the operation.Follow-up was available in 68 patients for 6 to 10 months(mean,9 months).During the period,no recurrent calculi was found by ultrasonography and X-ray.ConclusionTransurethral nephroscopic pneumatic lithotripsy combined with ultrasound lithotripsy is effective for bladder calculus.

Objective To study the value of adrenal venous sampling (AVS) in the differential diagnosis of primary aldosteronism (PA).Methods Fourteen patients (11 adenoma and 3 adrenal hyperplasia) clinically diagnosed as PA were examined with AVS for measurement of plasma aldosterone and cortisol levels.Selectivity of AVS was assessed by the aldosterone level in each adrenal vein and in the infrarenal inferior vena cava plasma.The data were compared with CT and postoperative pathologic result.Results The diagnosis of adenoma by AVS in 9 (9/11) cases was in accordance with the postoperative pathologic findings.The diagnosis of hyperplasia by AVS in all 3 cases was in accordance with CT scanning result.Conclusion AVS should be selected to distinguish the PA without overt occupational lesion in CT scanning.

Objective To assess the value of dobutamine stress echocardiography (DSE) in predicting myocardial viability by comparing with single photon emission computed tomography(SPECT).Methods Taking improvement of ventricular wall motion as a standard,fifteen patients undergone percutaneous coronary artery intervention(PCI) were detected by DSE and SPECT respectively,comparing their accuracy in predicting myocardial viability.Results By DSE, difference of the sensitivity and negative forecasting value was remarkable between peak dose stage and low dose stage,comparing with DSE,SPECT had the highest sensitivity and the lowest distinctivity.Conclusions The two techniques have their own advantages and disadvantages in predicting myocardial viability,but DSE is more practical.

0.05).[Conclusion]The technique of double-tunnel with double-bundle of TE for reconstruction of anterior cruciate ligament(ACL) can improve the knee stability at the different flexion degree(0?～90?) and is more efficiently than the technique of single-tunnel with single-bundle.