BACKGROUND AND PURPOSE Recent experience suggests that diffusion-weighted MR imaging may be decisive in the differential diagnosis of ring-enhancing cerebral lesions. Whether restricted diffusion within a ring-enhancing cerebral mass lesion is pathognomonic for abscess was studied. METHODS Seventeen patients with ring-enhancing cerebral lesions (three abscesses, six glioblastomas, eight metas...

BACKGROUND AND PURPOSE Glioblastomas, brain metastases, and PCLs may have similar enhancement patterns on MR imaging, making the differential diagnosis difficult or even impossible. The purpose of this study was to determine whether a combination of DTI and DSC can assist in the differentiation of glioblastomas, solitary brain metastases, and PCLs. MATERIALS AND METHODS Twenty-six glioblastom...

BACKGROUND AND PURPOSE Differentiation of glioblastomas and solitary brain metastases is an important clinical problem because the treatment strategy can differ significantly. The purpose of this study was to investigate the potential added value of DTI metrics in differentiating glioblastomas from brain metastases. MATERIALS AND METHODS One hundred twenty-eight patients with glioblastomas an...

BACKGROUND The appropriate thresholds for decisions on the cost-effectiveness of medical interventions remain controversial, especially in 'end-of-life' situations. Evidence of the values placed on different types of health gain by the general public is limited. METHODS Across nine European countries, 17,657 people were presented with different hypothetical health scenarios each involving a g...

BACKGROUND AND PURPOSE Diffusion-weighted (DW) MR imaging is a means to characterize and differentiate morphologic features, including edema, necrosis, and tumor tissue, by measuring differences in apparent diffusion coefficient (ADC). We hypothesized that DW imaging has the potential to differentiate recurrent or progressive tumor growth from treatment-induced damage to brain parenchyma in hig...

DFT calculations carried out on trans-decahydronaphthalene and 4b,8b-dihydronaphthalene, important structural features of many alkaloids, revealed that they are moderately acidic carbon acids in the gas-phase and in DMSO solution. Substitution with a nitrogen atom of a neighbouring C(sp)–H fragment bonded to an acidic centre reduces the corresponding acidity in both phases. Following that, oxid...

Machine learning and data mining retort heavily on a large amount of data to build learning models and make predictions. There is a need for quality of data, thus the quality of data is ultimately important. Many of the industrial and research databases are plagued by the problem of missing values. A variety of methods have been developed with great success on dealing with missing values in dat...

The tranquil solution for the hearing impaired subjects to get rid of the impairment is to wear the appropriate hearing aid to increase the hearing level and clarity of the perceived speech. Though the present day hearing aids are inbuilt with a suitable noise removing algorithm to get a clear speech signal, the satisfaction among the users is low. The satisfaction of the hearing aid users will...

Customer relationship management is not only pure business, but also indicates strong personal bonding within people. Development of this type of bonding drives the business to new levels of success. Once this personal and emotional linkage is built, it is very easy for any organization to identify the actual needs of the customer and to help and serve them in a better way. It is a belief that ...