This paper provides an overview of the different deep convolutional neural network (DCNNs) architectures that have been investigated in past years for generation synthetic computed tomography (CT) or pseudo-CT from magnetic resonance (MR). The U-net, Atrous-net and Residual-net were analyzed, implemented compared. Each was using 2D filters 3D with slices patches respectively as inputs. Two data...

University of California, San Francisco, USA An atlas-CT-based bone-anatomy compensation for MR-based attenuation correction (MRAC) in brain PET/MRI imaging is a current standard. However, the impact of an anatomical difference has not been clinically evaluated. Thus, we aim to evaluate the impact of the anatomical dissimilarity on MRAC. Whole-body FDG-PET/CT followed by PET/MRI were performed ...

Where V is the volume of the tank [m3], Qin & Qe are respectively the inflow rate and outflow rate [m3d-1]; CT,in & CT are concentrations in the inflow and outflow, respectively [g m-3]; krem , ksed , kbiodeg and kvol are the overall pseudo first order in-stream removal, sedimentation, biodegradation and volitalization rate constants, respectively [d-1] ; Sexternal is the external source due to...

Pneumatosis intestinalis is defined as the presence of gas within the wall of the gastrointestinal tract. Originally described on plain abdominal radiographs, it is an imaging sign rather than a specific diagnosis and it is associated with both benign and life-threatening clinical conditions. The most common life-threatening cause of pneumatosis intestinalis is bowel ischaemia. Computed tomogra...

A 78-year-old woman receiving treatment for limited systemic scleroderma (SSc) underwent high anterior resection and partial liver resections for rectosigmoid colon cancer with multiple liver metastases. A year after surgery, an abdominal computed tomography (CT) demonstrated suspicion for peritoneal dissemination with an increase in ascites, and (18)F-fluorodeoxy glucose-positron emission tomo...

A pseudo aneurysm results from leakage of blood from an artery after trauma or dehiscence or separation of a surgical anastomosis. The reported rate of pseudo aneurysm in access sites range from 0.88% to 8%. It has some cause like penetrating trauma, blunt trauma and endovascular procedure. The differential diagnoses of this lesion are hematoma, AV fistula, lymphadenopathy, lymphocele, DVT, com...

Behcet's disease is a rare immune mediated systemic vasculitis which besides it's more frequent involvement of eyes and skin, sometimes present with aortic pseudo aneurysm and more rarely cardiac inflammatory masses.A 51-year-old patient with Behçet's Disease presented with two symptomatic aortic pseudoaneurysms concomitant with a right atrial mass. Computed tomography (CT) revealed one supra-c...