In an analysis of National Lung Screening Trial data, participants with enlarged (≥1.0 cm) noncalcified mediastinal lymph nodes at initial CT had a greater chance of being diagnosed with lung cancer than those without enla...
This paper presents a novel semi-automatic method for lung segmentation in thoracic CT datasets. The fully three-dimensional algorithm is based on a level set representation of an active surface and integrates texture features to improve its robustness. The method’s performance is enhanced by the ...
Two planning computed tomographies (CT), with and without contrast, were obtained. Target volumes were re-contoured on contrast-enhanced CT and then transferred to non-contrast CT. Critical organs were then identified and contoured. Initially, 28 patients were discussed. After the target volume ...
FEV1: forced expiratory volume in one second; FVC: forced vital capacity; respiratory failure: arterial partial pressure of oxygen (PaO2) less than 8.0 kPa (60 mm Hg) with or without arterial partial pressure of CO2 (PaCO2) greater than 6.7 kPa (50 mm Hg) while breathing air at sea ...
Whole-body PET scans had been acquired using three different models of PET/CT scanners (Siemens Biograph 16, Philips Gemini GXL, Philips Gemini TF16) with full-dose contrast-enhanced or low-dose non-contrast-enhanced CT for attenuation correction and anatomical co-registration. Image acquisition ...
In contrast, the popularity of chest CT is very high, especially with the large-scale chest CT screening for lung cancer. Moreover, more and more community health service centers will be equipped with CT. There- fore, the most important clinical scenario is for the large- scale lung cancer...
· Chest CT with contrast · PET-CT scan (if not previously done) h · Brain MRI Disease outside of chest No disease outside of chest See Systemic Therapy for Metastatic Disease (NSCL-15) Pathologic mediastinal lymph node evaluation g N2-3 N0-1 See Systemic Therapy for Metastatic Disease ...
On CT, a ground glass opacity that spares the pulmonary cortex (Fig. 3) and predominantly affects the upper region can be readily observed. In patients with immune deficiency not caused by AIDS, ground glass opacities are common but nonspecific, as they can be caused by viral or pyogenic ...
2b,c), combined with the use of several millimeter long working distance objectives, enabled imaging without the need for further tissue processing such as cutting/sectioning, deflation, or flattening. This is in contrast to previous studies in which the infusion steps outlined above were not ...
Lung cancer is the leading cause of cancer-associated mortality worldwide1. Here we analysed 1,644 tumour regions sampled at surgery or during follow-up from the first 421 patients with non-small cell lung cancer prospectively enrolled into the TRACERx s