نتایج جستجو برای: positive prediction value
تعداد نتایج: 1541930 فیلتر نتایج به سال:
introduction: in cases of blunt abdominal traumas, predicting the possible intra-abdominal injuries is still a challenge for the physicians involved with these patients. therefore, this study was designed, to evaluate the accuracy of urinalysis in predicting intra-abdominal injuries. methods: patients aged 15 to 65 years with blunt abdominal trauma who were admitted to emergency departments wer...
Lots of similarity-based algorithms have been designed to deal with the problem of link prediction in the past decade. In order to improve prediction accuracy, a novel cosine similarity index CD based on distance between nodes and cosine value between vectors is proposed in this paper. Firstly, node coordinate matrix can be obtained by node distances which are different from distance matrix and...
Background: F-FDG PET/CT (PET) is useful in assessing inflammatory activity in sarcoidosis. However, no appropriate indications are available. The aim of this study was to develop a prediction rule that can be used to identify symptomatic sarcoidosis patients who have a high probability of PET-positivity. Methods: We retrospectively analyzed a cohort of sarcoidosis patients with non organ speci...
BACKGROUND (18)F-FDG PET/CT (PET) is useful in assessing inflammatory activity in sarcoidosis. However, no appropriate indications are available. The aim of this study was to develop a prediction rule that can be used to identify symptomatic sarcoidosis patients who have a high probability of PET-positivity. METHODS We retrospectively analyzed a cohort of sarcoidosis patients with non organ s...
This study was carried out to assess the influence of site of biopsy and tumor heterogeneity upon the value of progesterone receptor (PR) measurements for prediction of response of patients with advanced carcinoma of the breast to tamoxifen or ovarian ablation. One hundred eighty-one assessable patients were studied. Sixty-nine % of responders and 31% of nonresponders were PR positive. The time...
background: tins research was conduced to estimate the positive predictive value of physicians at kerman emergency services for traumatic patients who referred to radiology department of kerman hospital in 2001. methods: this study was a cross-sectional study and carried out on 353 patients. a questionnaire was used as a research instrument. results: three radiologists reported the films separa...
in this paper, we formulate the sixth-order boundary value problem as fredholm integral equation by finding green's function and obtain the sufficient conditions for existence and multiplicity of positive solution for this problem. also nonexistence results are obtained. an example is given to illustrate the results of paper.
in this paper, the existence and uniqueness of positive solutions for a class of nonlinear initial value problem for a finite fractional difference equation obtained by constructing the upper and lower control functions of nonlinear term without any monotone requirement .the solutions of fractional difference equation are the size of tumor in model tumor growth described by the gompertz f...
Preoperative airway assessment for prediction of difficult laryngoscopy and intubation was done using the modified Mallampati test and Wilson risk sum score in three hundred and seventy two obstetric patients undergoing elective as well as emergency Cesarean section under general anesthesia. 25 (6.7%) patients had laryngoscopy grade III or IV of whom 24 (6.4%) patients were difficult at trachea...
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