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1.
China Journal of Orthopaedics and Traumatology ; (12): 743-749, 2021.
Artículo en Chino | WPRIM | ID: wpr-888350

RESUMEN

OBJECTIVE@#To investigate the application value of apparent diffusion coefficient (ADC) and signal intensity ratio (SIR) of MR diffusion-weighted imaging (DWI) in quantitative evaluation of lumbar spine osteoporosis.@*METHODS@#A total of 175 patients with lumbar spine diseases who received dualenergy X-ray absorption (DXA) bone mineral density (BMD), routine MRI and DWI of the lumbar spine from May 2017 to October 2019 were selected. According to the T-value of DXA, the patients were divided into osteoporosis group (64 cases), osteopenia group (53 cases) and normal bone mass group (58 cases). The ADC and SIR values of L@*RESULTS@#There were statistically significant differences in ADC and SIR values among three groups (@*CONCLUSION@#ADC and SIR can better reflect the BMD of patients with lumbar diseases, and can quantitatively evaluate the vertebral body of osteoporosis, which play an important role in the diagnosis of lumbar osteoporosis.


Asunto(s)
Humanos , Imagen de Difusión por Resonancia Magnética , Vértebras Lumbares/diagnóstico por imagen , Imagen por Resonancia Magnética , Espectroscopía de Resonancia Magnética , Osteoporosis/diagnóstico por imagen
2.
Acta Academiae Medicinae Sinicae ; (6): 216-221, 2021.
Artículo en Chino | WPRIM | ID: wpr-878723

RESUMEN

Objective To analyze the CT characteristics of consolidation type of pulmonary cryptococcosis in immunocompetent patients,and thus improve the diagnosis of this disease. Methods A total of 20 cases with consolidation-type pulmonary cryptococcosis confirmed by pathological examinations were studied.Each patient underwent breath-hold multislice spiral CT,and 10 patients underwent contrast enhanced CT.The data including lesion number,lesion distribution,lesion density,performance of enhanced CT scan,accompanying signs,and prognosis were analyzed. Results The occurrence rates of single and multiple lesions were 80.0%(n=16)and 20.0%(n=4),respectively.In all the 16 multiple-lesion patients,the occurrence rate of unilateral lobar distribution was 56.0%(n=9).The 76 measurable lesions mainly presented subpleural distribution(71.1%,n=54)and lower pulmonary distribution(75.0%,n=57).A total of 39 lesions were detected in the 10 patients received contrast enhanced CT,in which 31 lesions(79.5%)showed homogeneous enhancement,34 lesions(87.2%)showed moderate enhancement,and all the lesions manifested angiogram sign.Consolidation lesions were accompanied by many CT signs,of which air bronchogram sign had the occurrence rate of 63.2%(n=48),including types Ⅲ(n =37)and Ⅳ(n=11).Other signs included halo signs(43/76,56.6%),vacuoles or cavities(9/76,11.8%),pleural thickening(14/20,70.0%),and pleural effusion(2/20,10.0%).After treatment,the lesions of 7 patients were basically absorbed and eventually existed in the form of fibrosis. Conclusions The lesions in the immunocompetent patients with consolidation type of pulmonary cryptococcosis usually occur in the lower lobe and close to the pleura,mainly presenting unilateral distribution.The CT angiogram signs,proximal air bronchogram signs,and halo signs are the main features of this disease,which contribute to the diagnosis.


Asunto(s)
Humanos , COVID-19 , Criptococosis/diagnóstico por imagen , Pulmón , Enfermedades Pulmonares Fúngicas/diagnóstico por imagen , Estudios Retrospectivos , Tomografía Computarizada por Rayos X
3.
Acta Academiae Medicinae Sinicae ; (6): 136-139, 2013.
Artículo en Chino | WPRIM | ID: wpr-284289

RESUMEN

<p><b>OBJECTIVE</b>To summarize the clinical and computed tomographic(CT) findings of tuberous sclerosis(TS) associated with hepatic and renal angiomyolipomas.</p><p><b>METHOD</b>We retrospectively analyzed the clinical and CT findings of 7 TS patients with hepatic and renal angiomyolipomas.</p><p><b>RESULTS</b>Brain CT showed calcified nodules and/or the uncalcified nodule in the lateral ventricle subependymal in 7 patients. Abdominal CT showed bilateral renal angiomyolipomas in 7 cases and hepatic angiomyolipomas in 2 cases. Chest CT showed lymphangioleiomyomatosis in one case.</p><p><b>CONCLUSIONS</b>TS associated with merger hepatic and/or renal angiomyolipomas have typical CT findings. Liver angiomyolipomas shows certain correlation with bilateral renal angiomyolipomas.</p>


Asunto(s)
Adolescente , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Adulto Joven , Angiomiolipoma , Diagnóstico por Imagen , Neoplasias Renales , Diagnóstico por Imagen , Neoplasias Hepáticas , Diagnóstico por Imagen , Estudios Retrospectivos , Tomografía Computarizada por Rayos X , Esclerosis Tuberosa , Diagnóstico por Imagen
4.
Chinese Journal of Epidemiology ; (12): 317-320, 2005.
Artículo en Chino | WPRIM | ID: wpr-331886

RESUMEN

<p><b>OBJECTIVE</b>To evaluate the effect and to explore the feasible model of 100% condom use programme (100%CUP) under existing policy and law milieu, so as to provide information for the adjustment of HIV/AIDS policy and intervention strategies.</p><p><b>METHODS</b>Information on knowledge, attitude and behavior of female sex workers (FSWs) in entertainment establishments were collected and followed by qualitative and quantitative analysis including: samples tested for Chlamydia; a repeated cross-investigation and the final evaluation on the effect of the programme.</p><p><b>RESULTS</b>The reported rate of condom use at the last sex activity with clients increased from 74.9% to 92.2% while the rate of sexually transmitted disease (STD) prevalence droped from 25.1% to 14.1% after three year's intervention program. The number of condoms distributed increased from 50,000 per quarter of a year in 2001 to over 100,000 in 2003. The rates of awareness on the knowledge of STD/AIDS prevention increased obviously.</p><p><b>CONCLUSION</b>The 100%CUP was proved to be feasible and effective in the pilot site, and should be expanded in entertainment establishments.</p>


Asunto(s)
Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , China , Epidemiología , Condones , Estudios de Evaluación como Asunto , Educación en Salud , Cooperación Internacional , Prevalencia , Sexo Seguro , Enfermedades de Transmisión Sexual , Epidemiología , Organización Mundial de la Salud
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