Industrial CT (computerized tomography) uses a series of 2-dimensional images taken at specific intervals around the entire sample. Basically any type of industrial CT system uses three principal components: an X-ray tube, an X-ray detector, and a rotational stage. Everything is enclosed within a radiation shielding steel/lead/steel cabinet that typically ranges between four and 10 feet cubed. ...

A 50-year-old male underwent a checkup for an insurance company. Chest X-ray revealed a large ball-like lesion in the posterior mediastinum. The finding was confirmed by computed tomography (CT) scan (Figure 1). The patient was referred to our center, where he had a successful mass removal surgery (Figure 2). Pathology identified the mass as neurinoma. A B Figure 1. Chest X-ray (A) and computed...

The second Liver CT (Computed tomography) annotation challenge was organized during the 2015 Image-CLEF workshop, hosted by the Institut de Recherche en Informatique de Toulouse (IRIT), University of Toulouse, France. This challenge entailed the annotation of Liver CT scans to generate structured reports. This paper describes the motivations for this task, training and test datasets, the evalua...

A 54-year old woman presented with a year long history of increasing dyspnoea and orthopnoea. The chest X-ray and CT scan suggested bilateral hemidiaphragmatic elevation (Fig. 1a and b). Subsequent MRI demonstrated normal position of both hemi-diaphragms and diagnosis of massive hiatus hernia was made (Fig. 2). Herniated stomach, omentum and colon were confirmed intraoperatively. Figure 1: Ches...

To develop volumetric micro-CT fluoroscopy for small animal imaging, we have proposed a cone-beam system with multiple x-ray sources. In this paper, we extend Parker's single-source half-scan weighting scheme to the case of an odd number of x-ray sources that are equiangularly distributed, and apply it for half-scan Feldkamp-type reconstruction in this unique geometry. In the numerical simulati...

  Skeletal tuberculosis is an unusual disease involving bone and joints and it may have different manifestations. This report introduces a 25-year-old woman suffering from chronic knee pain without any response to conservative treatments for one year. X-ray was normal but CT-scan and MRI indicated a small lesion in medial condyle of the femur. The patient underwent percutaneous CT-guided biopsy...

objective(s): in clinical practice, approximately 10-25% of post-surgical differentiated thyroid carcinoma (dtc) patients with high serum thyroglobulin (tg) and negative 131i whole-body scan (wbs) have poor prognosis due to recurrent or metastatic lesions after radioactive iodine treatment. the purpose of this study was to evaluate the value of 18f-fdg pet/ct scan in dtc patients with high seru...