Typology and socio-demographic characteristics of Massively Multiplayer Online Game players

To date, there has been relatively little research comparing different types of online gamers. The main aim of this study was to provide robust benchmark data on different types of Massively Multiplayer Online Game (MMOG) players using a large sample of online gamers. An online survey was used to recruit 4,374 Hungarian online gamers from websites offering different types of MMOGs. In addition to sociodemographic characteristics, the study also collected data on gaming preference, amount of time spent gaming, amount of money spent on the game, and whether they played at an amateur or professional level. A latent profile analysis of gaming preferences differentiated between eight specific gamer types, of which four types emerged as clear categories, indicating clear preference for a specific type of game (role-playing games, first-person shooter games, real-time strategy games, and other games). Overall, 79% of gamers belonged to these four categories. First-person shooter gamers were almost exclusively male, younger aged, lower educated, and of lower socioeconomic status. Real-time strategy gamers were older. Female gamers were most likely to play “Other” games and/or role-playing games. In relation to time spent gaming, role-playing gamers appeared to be the most vulnerable. The results indicated that a significant number of gamers have clear gaming preferences, and these specific gaming types are associated with significant differences regarding sociodemographic and gaming characteristics of gamers

Comparison of diameter and perimeter methods for tumor volume calculation.

PURPOSE: Lesion volume is often used as an end point in clinical trials of oncology therapy. We sought to compare the common method of using orthogonal diameters to estimate lesion volume (the diameter method) with a computer-assisted planimetric technique (the perimeter method). METHODS: Radiologists reviewed 825 magnetic resonance imaging studies from 219 patients with glioblastoma multiforme. Each study had lesion volume independently estimated via the diameter and perimeter methods. Cystic areas were subtracted out or excluded from the outlined lesion. Inter- and intrareader variability was measured by using multiple readings on 48 cases. Where serial studies were available in noncystic cases, a mock response analysis was used. RESULTS: The perimeter method had a reduced interreader and intrareader variability compared with the diameter method (using SD of differences): intrareader, 1.76 mL v 7.38 mL (P \u3c .001); interreader, 2.51 mL v 9.07 mL (P \u3c .001) for perimeter and diameter results, respectively. Of the 121 noncystic cases, 23 had serial data. In six (26.1%) of those 23, a classification difference occurred when the perimeter method was used versus the diameter method. CONCLUSION: Variability of measurements was reduced with the computer-assisted perimeter method compared with the diameter method, which suggests that changes in volume can be detected more accurately with the perimeter method. The differences between these techniques seem large enough to have an impact on grading the response to therapy

The Chicago Consensus on peritoneal surface malignancies: Management of desmoplastic small round cell tumor, breast, and gastrointestinal stromal tumors

The Chicago Consensus Working Group provides multidisciplinary recommendations for the management of desmoplastic small round cell, breast, and gastrointestinal stromal tumors specifically related to peritoneal surface malignancy. These guidelines are developed with input from leading experts, including surgical oncologists, medical oncologists, pathologists, radiologists, palliative care physicians, and pharmacists. These guidelines recognize and address the emerging need for increased awareness in the appropriate management of peritoneal surface disease. They are not intended to replace the quest for higher levels of evidence

The Chicago Consensus on peritoneal surface malignancies: Palliative care considerations

The Chicago Consensus Working Group provides multidisciplinary recommendations for palliative care specifically related to peritoneal surface malignancies. These guidelines are developed with input from leading experts including surgical oncologists, medical oncologists, gynecologic oncologists, pathologists, radiologists, palliative care physicians, and pharmacists. These guidelines recognize and address the emerging need for increased awareness in the appropriate management of peritoneal surface disease. They are not intended to replace the quest for higher levels of evidence