Highlights ■ Vendor Neutral Archive implementation has an return on investment of 5.63% in the first year and 10.12% after three years. ■ At least 11,500 exams are needed annually for a positive return on investment in the first year after implementation. ■ Vendor Neutral Archive enhances interoperability and efficiency by standardizing and centralizing image storage. ■ Scalability is key: higher adoption of Vendor Neutral Archive leads to greater financial and operational benefits. ABSTRACT Objective: To conduct an ex-ante cost-benefit […]

ABSTRACT Incidentalomas are lesions incidentally identified in patients undergoing imaging for unrelated reasons. Breast incidentalomas have a high correlation with malignancy, occurring in over 40% of cases. Consequently, their interpretation poses significant challenges for radiologists who must discern the findings that may present a potential risk to the patient. This pictorial review presents different incidental breast lesions revealed through cross-sectional imaging. We further review key concepts related to such incidentalomas.

Highlights ■ This study represents the first investigation into the prevalence of deep endometriosis within outpatient services. ■ Utilizing real-world data, this study explores the prevalence of endometriosis. ■ The prevalence of endometriosis among women of reproductive age is 6.4% (based on real-world data). ■ The prevalence of endometriosis in women experiencing pelvic pain is 34.2%. ■ Infertility is 6.5 times more common in women diagnosed with endometriosis. ■ The presence of palpable posterior cul-de-sac nodules or a retroverted uterus […]

ABSTRACT Objective: To evaluate anatomic factors and radiologist’s experience in the detection of solid renal masses on ultrasonography. Methods: We searched for solid renal masses diagnosed on cross-sectional imaging from 2007 to 2017 that also had previous ultrasonography from the past 6 months. The following features were evaluated: nodule size, laterality, location and growth pattern, patient body mass index and radiologist’s experience in ultrasound. In surgically resected cases, pathologic reports were evaluated. Unpaired t test and χ2 test were used […]

ABSTRACT Objective To develop a computational algorithm applied to magnetic resonance imaging for automatic segmentation of brain tumors. Methods A total of 130 magnetic resonance images were used in the T1c, T2 and FSPRG T1C sequences and in the axial, sagittal and coronal planes of patients with brain cancer. The algorithms employed contrast correction, histogram normalization and binarization techniques to disconnect adjacent structures from the brain and enhance the region of interest. Automatic segmentation was performed through detection by coordinates […]

Coronary computed tomography angiography (coronary CTA) is a powerful non-invasive imaging method to evaluate coronary artery disease. Nowadays, coronary CTA estimated effective radiation dose can be dramatically reduced using state-of-the-art scanners, such as 320-row detector CT (320-CT), without changing coronary CTA diagnostic accuracy. To optimize and further reduce the radiation dose, new iterative reconstruction algorithms were released recently by several CT manufacturers, and now they are used routinely in coronary CTA. This paper presents our first experience using coronary CTA […]

OBJECTIVE: To identify and evaluate latent variables (variables that are not directly observed) for adopting and using nuclear technologies in diagnosis and treatment of chronic diseases. The measurement and management of these latent factors are important for healthcare due to complexities of the sector. METHODS: An exploratory factor analysis study was conducted among 52 physicians practicing in the areas of Cardiology, Neurology and Oncology in the State of Sao Paulo who agreed to participate in the study between 2009 and […]

OBJECTIVE: To verify the prevalence of the accessory soleus muscle in humans and according to gender. METHODS: A total of 154 magnetic resonance images of the ankle were assessed in T1 weighted sagittal, coronal and axial planes. RESULTS: An incidence of 11.6% of accessory soleus muscle in humans was observed; in that, 7.8% in males and 15.6% in females. CONCLUSION: The accessory soleus muscle incidence was 11.6% in the samples studied and it was more often present in females.

ABSTRACT Pericardial cysts account for 12-18% of all mediastinal masses. They are usually asymptomatic and incidentally detected. However, when large, they can cause symptoms. Most pericardial cysts are located in the right cardiophrenic angle, but they can be anywhere in the mediastinum. We reported a pleuropericardial cyst torsion after physical stress, a very rare complication of this condition. The diagnosis was made by computed tomography and confirmed by video-assisted thoracoscopy.