Many imaging modalities and scanning techniques, such as contrast enhanced CT, MRI and FDG-PET, are available for assessment of recurrent colorectal carcinoma. In addition, integrated PET/CT is becoming increasingly available. Intuitively, a synergistic combination of scanning characteristics sounds promising. However, the exact clinical value has not yet been fully established. The role of PET...

Seeds and young seedlings often encounter high soluble salt levels in the upmost soil layers, impeding vigorous growth by affecting root establishment. Computed tomography (CT) scanning used at low X-ray doses can help study root development in such conditions non-destructively, because plants are allowed to grow throughout the experiment. Using a high-resolution Toshiba XVision CT scanner, we ...

The precise localisation of osteoarthritic changes is crucial for selective surgical treatment. Single photon-emission CT-CT (SPECT-CT) combines both morphological and biological information. We hypothesised that SPECT-CT increased the intra- and interobserver reliability to localise increased uptake compared with traditional evaluation of CT and bone scanning together. We evaluated 20 consecut...

Computer tomography (CT) is an effective technique in the initial evaluation of the abdomen and head following blunt trauma. To evaluate the role of CT of the thorax, a prospective study comparing routine early thoracic CT scanning with initial chest roentgenogram (CXR) was carried out on 73 patients with blunt torso trauma undergoing concomitant abdominal CT examination. Initial CXR and CT sca...

In evaluating patients with abdominal pain, physicians and surgeons have increasingly relied upon CT scanning of the abdomen and pelvis. Diagnostic accuracy in treating a wide variety of abdominal and pelvic conditions is facilitated by CT scanning. In this article we will review our experience treating two patients discovered to have septic phlebitis of the inferior mesenteric vein when they w...

Introduction: Computed tomography (CT) consists of 11% of all imaging methods, but accounts for approximately 67% of radiation exposure due to diagnostic cases. More than one-third of all CT scans are done in the head and neck area. The thyroid gland is irradiated during CT head and neck. According to studies, this gland has the highest levels of radiation-induced cancer, and i...

Background: The incidence of empyema is increasing worldwide in children. While there are emerging data for the best treatment options, there is little evidence to support the imaging modalities used to guide treatment particularly with regard to the role of routine computed tomography (CT). The aims of this study were to develop a radiological scoring system for paediatric empyema and to asses...

Objective(s): Small cell lung cancer (SCLC) is an aggressive neuroendocrine carcinoma, which accounts for 10-15% of pulmonary cancers and exhibits early metastatic spread. This study aimed to determine the added value of 18F-FDG PET/CT imaging in tumor, node, and metastasis (TNM) staging of SCLC, compared to the conventional computed tomography (CT) scan and its potential role as a prognosticat...

The present study was aimed at investigating the potential of computed transmission tomography (CT) scanning for quantitative assessment of interventricular septal wall thickness in living dogs. Seven normal beagles and seven litter mates with left ventricular hypertrophy were scanned in order to determine the sensitivity of the method. Left ventricular hypertrophy was created by banding the as...

Citation: McDougald WA, Collins R, Green M and Tavares AAS (2017) High Dose MicroCT Does Not Contribute Toward Improved MicroPET/CT Image Quantitative Accuracy and Can Limit Longitudinal Scanning of Small Animals. Front. Phys. 5:50. doi: 10.3389/fphy.2017.00050 High Dose MicroCT Does Not Contribute Toward Improved MicroPET/CT Image Quantitative Accuracy and Can Limit Longitudinal Scanning of Sm...