Brian J. Bartholmai

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RATIONALE AND OBJECTIVES Volumetric high-resolution scans can be acquired of the lungs with multidetector CT (MDCT). Such scans have potential to facilitate useful visualization, characterization, and quantification of the extent of diffuse lung diseases, such as usual interstitial pneumonitis or idiopathic pulmonary fibrosis (UIP/IPF). There is a need to(More)
Glomus tumor of the trachea is extremely rare. We report a case of tracheal glomus tumor in a 39-year-old man who presented with hemoptysis. The diagnosis was made after bronchoscopic biopsy of a tumor involving the posterior wall of the upper trachea. Thin-section multidetector computed tomography of the chest was performed before surgical resection, with(More)
BACKGROUND Limited data exist regarding the population-based epidemiology of idiopathic pulmonary fibrosis (IPF). The objective of the study was to describe the trends in the incidence, prevalence, and clinical course of IPF in the community. METHODS We conducted a population-based study of adult patients with IPF in Olmsted County, Minnesota, from 1997(More)
Computer-aided diagnosis has been under development for more than 3 decades. The rate of progress appears exponential, with either recent approval or pending approval for devices focusing on mammography, chest radiographs, and chest CT. Related technologies improve diagnosis for many other types of medical images including virtual colonography, vascular(More)
OBJECTIVES Several studies have identified airflow obstruction as a risk factor for lung cancer independent of smoking history, but the risk associated with the presence of radiographic evidence of emphysema has not been extensively studied. We proposed to assess this risk using a quantitative volumetric CT scan analysis. METHODS Sixty-four cases of lung(More)
Accurate assessment of prognosis in idiopathic pulmonary fibrosis remains elusive due to significant individual radiological and physiological variability. We hypothesised that short-term radiological changes may be predictive of survival. We explored the use of CALIPER (Computer-Aided Lung Informatics for Pathology Evaluation and Rating), a novel software(More)
RATIONALE AND OBJECTIVES To evaluate the relationship between measurements of lung volume (LV) on inspiratory/expiratory computed tomography (CT) scans, pulmonary function tests (PFT), and CT measurements of emphysema in individuals with chronic obstructive pulmonary disease. MATERIALS AND METHODS Forty-six smokers (20 females and 26 males; age range(More)
PURPOSE The aim of this study was to determine the incidence, types, and clinical implications of laterality errors and the effect of voice recognition software on the frequency of laterality errors. METHODS All radiology reports generated between January 2007 and April 2011 were retrospectively evaluated to identify revised reports containing laterality(More)
BACKGROUND AND OBJECTIVES The role of sodium bicarbonate in preventing contrast nephropathy needs to be evaluated in clinical settings. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS We performed a retrospective cohort study at Mayo Clinic in Rochester, Minnesota, to assess the risk of contrast nephropathy associated with the use of sodium bicarbonate,(More)
RATIONALE AND OBJECTIVES To determine if interpretive errors in the course of learning CT colonography are secondary to failures in detection or in characterization and determine the types of lesions frequently missed. MATERIALS AND METHODS Fifteen radiologists completed an electronic CTC training module consisting of two parts: 1) a teaching file(More)