[Suitability of Internet Medical Services of Hospitals from the Perspective of Suppliers].

Objective To investigate the suitable services of telemedicine at present and the future from the perspective of medical service supplier,clarify the challenges in the development of telemedicine services at present,and provide evidence-based suggestions for improving the quality of telemedicine services. Methods A questionnaire was developed through literature review for the survey of telemedicine services from the perspective of service providers.From January to June in 2020,electronic questionnaires were collected from volunteers.

[Practice and System Construction of Telemedicine for Coronavirus Disease 2019 Epidemic Prevention and Control].

Telemedicine is one of the five key components of the "Internet Plus Healthcare".Due to its high speed,real-timeness,low cost,and wide spread,telemedicine is highly feasible in the prevention and control of major infectious diseases.This article introduces the practiceof telemedicine in Peking Union Medical College Hospital during the cornavirus disease 2019(COVID-19)epidemic,during which the network resources were applied to break geographical restrictions and resolve communication barriers between hospitals and departments.

Prognosis of nonspecific interstitial pneumonia correlates with perivascular CD4+ T lymphocyte infiltration of the lung.

Background: Nonspecific interstitial pneumonia (NSIP) is characterized by interstitial infiltration of T lymphocytes, and subpopulations of these cells may be associated with the progression of fibrosis. However, few studies evaluate the correlation of prognosis with this characteristic. Therefore, we performed morphological and quantitative analyses of T lymphocytes in patients with NSIP and evaluated the relationship between T lymphocytes and prognosis.

Nonspecific interstitial pneumonia: clinical associations and outcomes.

Background: Studies have shown that nonspecific interstitial pneumonitis (NSIP), even when initially diagnosed as an idiopathic form of the disease, might be associated with an autoimmune background that later reveals itself as an organ-specific or a systemic autoimmune disease.

Methods: NSIP patients were divided into three groups. The NSIP patients who met the criteria for having a systemic autoimmune disease (SAD) were defined as the systemic autoimmune disease-associated NSIP (SAD-NSIP) group.

Application of diffusion weighted imaging in rectal cancer diagnosis.

Magnetic resonance imaging has became the major method for rectal cancer diagnosis. As a novel magnetic resonance functional imaging technique, diffusion-weighted imaging has improved the lesion detection sensitivity and provided more information on changes in body functions. The past two decades have witnessed the increasing application of this technique in clinical practices.

CD4+ and CD8+ T lymphocytes in lung tissue of NSIP: correlation with T lymphocytes in BALF.

Background: Nonspecific interstitial pneumonia (NSIP) is characterized by the interstitial infiltration T lymphocytes (TLs). Bronchoalveolar lavage fluid (BALF) has been used to analyze the inflammatory cells infiltrating in lung. The controversy about whether the BALF cellular profile reflects T lymphocytes in lung tissue still persists.

[Non-Hodgkin's lymphoma with diffuse ground-glass opacity on chest CT: a report of 6 cases].

Objective: To investigate the clinical, pathological and imaging characteristics, misdiagnosis and treatment of pulmonary non-Hodgkin's lymphoma with diffuse ground-glass opacities (GGO).

Methods: Six cases of pulmonary non-Hodgkin's lymphoma with diffuse GGO on chest CT diagnosed from January 2008 to March 2010 were retrospectively analyzed.

Results: There were 5 males and 1 female with average age of 52 years old (range: 30-59).

[The diagnosis of Crohn's disease of the small bowel: comparing CT enterography, capsule endoscopy, small-bowel follow through and ileocolonoscopy].

Objective: To investigate the diagnostic value of capsule endoscopy (CE), CT enterography (CTE), ileocolonoscopy and small bowel follow through (SBFT) for small bowel Crohn's disease (CD).

Methods: Fifty-seven consecutive patients with CD underwent ileocolonoscopy, CTE, CE, and SBFT. It included the presence of the following symptoms and signs: abdominal pain, weight loss, diarrhea, fever and positive fecal occult blood test.

[Diagnostic value of CT enterography in patients with Crohn's disease].

Objective: To assess the diagnostic value of CT enterography in patients with Crohn's disease.

Methods: Multi-detector CT enterography and small bowel follow-through were performed in 30 patients with Crohn's disease. The locations and characteristics of the intestinal and extra-intestinal lesions detected by both two techniques were compared.

[Value of computed tomographic colonography in analyzing mechanism of defecation in healthy subjects].

Objective: To establish the methodology of 3-dimensional CT reconstruction of colon and rectum in evaluating anorectum and pelvic floor function.

Methods: 19 healthy volunteers, 8 males and 11 females, aged 42.8, received both defecography and 3-dimensional CT reconstruction of colon and rectum.

[Diffusion weighted imaging combined with magnetic resonance conventional sequences for the diagnosis of rectal cancer].

Objective: To evaluate the clinical value of diffusion weighted imaging (DWI) combined with conventional sequences of magnetic resonance imaging (T1 and T2-weighted imaging) for the diagnosis of rectal cancer.

Methods: DWI and conventional sequences were performed in 29 patients with endoscopically diagnosed rectal cancer and 15 patients without rectal cancer. Two doctors who were blind to the history of the patients interpreted the imaging findings.

Application of computed tomographic colonography in diagnosis of colonic polyps.

Objective: To assess the clinical values of computed tomographic colonography (CTC) in diagnosis of colonic polyps.

Methods: Forty-two patients who were clinically suspicious of colonic polyps or underwent colonic polyps screening received examinations with both CTC and conventional colonoscopy. Sixteen- or 64-slice spiral computed tomography and professional imaging processing techniques were used for evaluation.

[Computed tomography appearance of pseudomyxoma peritonei].

Objective: To study the characteristics of computed tomography (CT) appearance in pseudomyxoma peritonei.

Methods: CT findings were retrospectively reviewed in 7 patients with surgically and pathologically confirmed pseudomyxoma peritonei.

Results: All patients had large-volume ascites with heterogeneous density, hepatic and splenic scallopings, and peritoneal and omental infiltration on CT.

[Imaging features of autoimmune pancreatitis].

Objective: To explore the clinical, pathological, and imaging features of autoimmune pancreatitis (AlP).

Methods: The clinical data of 10 patients (all men; aged 47-80 years, mean 61.3 years) with AlP in our hospital between March 2000 and August 2007 were retrospectively analyzed.

[Application of CT colonography in diagnosis of colonic polyps].

Objective: To assess the clinical values of CT colonography (CTC) in the diagnosis of colonic polyps.

Methods: Forty-two patients who were clinically suspicious of colonic polyps or underwent colonic polyps screening received both CTC and conventional colonoscopy. Sixteen or 64-slice spiral CT and professional imaging processing techniques were used for evaluation.

[Clinical, pathological and radiological characters of appendiceal mucocele].

Objective: To improve capability of appendiceal mucocele diagnosis via analyzes its clinical, pathological basis and radiological results.

Methods: Summarize 18 cases with pathological diagnosed appendiceal mucocele in PUMC Hospital since January 1985 till september 2004, including 4 males and 14 females (1:3.5), age ranged from 31 to 78 yrs old (average 59.

Using of multislice helical CT colonography in patients with malignant lesions of colon.

Objective: To investigate the techniques and clinical applications of multislice helical computed tomography (CT) colonography in colonic lesions.

Methods: Fifty-nine patients with malignant lesions of colon underwent volume scanning using multislice helical CT. Four types of reconstruction including CT virtual colonoscopy (CTVC), shaded surface display (SSD), Raysum, and multiple planar reconstruction (MPR) were used for image post-processing.

[Effect of age on the precision of dual X-ray absorptiometry measurement in middle-aged and elderly women].

Objective: To investigate whether age influence the precision of dual X-ray absorptiometry (DXA) measurement at the hip in middle-aged and elderly women.

Methods: Totally 90 women were randomly selected and divided into three age groups: 45-55 years, 56-65 years, and 66-75 years. Each age group contained 30 women.

[Techniques and clinical applications of 16 multislice helical CT in colonic diseases].

Objective: To evaluate the techniques and clinical applications of 16 multislice helical CT in colonic lesions.

Methods: Eighty-one patients including 54 colorectal carcinomas, 5 adenomas, 1 non-Hodgkin's lymphoma, 6 inflammatory bowel diseases, and other 15 cases underwent volume scanning using 16 multislice helical CT. Four types of reconstruction included multiple planar reconstruction, shaded surface display, raysum, and CT virtual colonoscopy.

[Bone mineral and body composition analysis of whole body in 292 normal subjects assessed by dual X-ray absorptiometry].

Objective: To understand whole body bone mineral and body composition changes in normal subjects, and study the relationship between body composition and bone mineral.

Methods: 292 normal subjects aged 10-79 years old, including 140 males and 152 females, were selected to be measured bone mineral content (BMC), bone mineral density (BMD) lean and fat of whole body by dual X-ray absorptiometry (DXA). Individuals were divided into age-groups by every ten years and were analyzed by statistical methods.