Ulcerated yellow-brown nodules on the chest

Multiple chest nodules on computed tomography scan.

Digital Object Identifier: 10.1188/03.CJON.697-698 Mr. M is a 75-year-old man recently diagnosed with chronic lymphocytic leukemia. The first two courses of chemotherapy were administered without problems, and Mr. M said he was feeling well enough to continue the remodeling of his home. While undergoing his third course of chemotherapy, he returned to the outpatient clinic with neutropenia, fev...

Multiple firm, reddish-brown papules and nodules on shoulder and arm

Small nodules detected on chest radiography: does size predict calcification?

STUDY OBJECTIVES To determine whether the likelihood of lung nodule calcification can be predicted from nodule size as measured on a chest radiograph (CXR). DESIGN Retrospective review of CXRs of patients with lung nodules < or =1 cm in size detected on CT scanning. CT images were used to identify calcifications and to provide spatial localization for readers to visualize nodules on a CXR and...

Segmentation of nodules on chest computed tomography for growth assessment.

Several segmentation methods to evaluate growth of small isolated pulmonary nodules on chest computed tomography (CT) are presented. The segmentation methods are based on adaptively thresholding attenuation levels and use measures of nodule shape. The segmentation methods were first tested on a realistic chest phantom to evaluate their performance with respect to specific nodule characteristics...

Detection of pulmonary nodules in chest tomosynthesis

Chest tomosynthesis is a relatively recently introduced technique in healthcare, which produces section images of the chest at a lower radiation dose than computed tomography (CT) and with better depth resolution than conventional chest radiography. The primary aims of the studies described in this dissertation were to compare chest tomosynthesis with conventional radiography, to evaluate the e...