No abstract

Hydrocephalus in children can inhibit child growth. However, if treated immediately, the patient will develop normal intelligence. In radiology, the most important problem is to detect hydrocephalus early. Currently, radiology examinations can detect hydrocephalus accurately with a CT scan to identify the presence of blockages and assess the degree. Skull radiography is used to assess the presence of advanced hydrocephalus. A comparison is carried out and assesses the relationship between hydrocephalus measurement on the ventricular and cranial index by scanogram. The study used a cross-sectional analytics design, using Picture Archiving and Communication System (PACS) data. There were 68 samples taken using consecutive sampling, obtaining ventricular index measurement results above 0.30, and patients under 12 years old. Spearman rank test showed a correlation between the ventricular index measurements and cranial index, with Spearman’s Rho (r) = 0.856 and p0.001 with linear equation Y= 2.973 + 0.005X. It revealed that the constant 2.973 indicated that if there is no B coefficient value, the participation value will be 2.973. Furthermore, regression coefficient X of 0.005 indicated that the participation value grows by 0.005 for every 1 addition of the B coefficient value with R2= 0.340.

Introduction: Radiography interpretation of osteosarcoma is almost similar with the benign and other malignant bone tumors. The radiologists’ ability to accurately diagnose osteosarcoma will determine the therapy and diagnostic consistency. Currently, there is lack of evidence on radiography interpretation reliability of osteosarcoma performed by radiologists. This study aimed to evaluate the interobserver and intraobserver radiologists’ compatibility to confirm the diagnosis of osteosarcoma and explore the interpretation variability of radiological description.Methods: This was an interobserver and intraobserver reliability study for osteosarcoma radiograph interpretation. The osteosarcoma radiographs, which have been histopathologically diagnosed, were evaluated retrospectively by two observers and twice by one observer in a different timeline. The components of osteosarcoma identified through the radiographs are bone destruction and its pattern, zone of transition, type of periosteal reaction, type of matrix calcification, skip metastasis, and soft tissue mass. The data analyzed with reliability testing through agreement analysis and Kappa value.Results: After evaluation of 30 radiographs of osteosarcoma, substantial reliability score for periosteal reaction (Kappa 0.79) to almost perfect for bone destruction, types of bone destruction, transitional zone, types of periosteal reaction, calcification matrix, and presence of soft tissue mass (Kappa 0.84-1) were found. There is a strong level of agreement (96.7%) found for skip metastasis. Intraobserver reliability also showed substantial value for the presence of soft tissue mass (Kappa 0.78) and almost perfect for other characteristics of osteosarcoma (0.84-0.93).Conclusion: Intraobserver and interobserver reliability of osteosarcoma radiograph interpretation was substantial and almost perfect.