| Detection of pulmonary nodules by C-arm CT using a phantom lung: comparison with CT. | |
| | |
MedLine Citation:
|
PMID: 21969706 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
BackgroundEvaluation of detection of lung nodules by C-arm CT (CACT) is important before this procedure can be used to guide percutaneous lung interventions.PurposeTo compare the efficacy of CACT with CT in the detection of pulmonary nodules using a phantom lung.Material and MethodsA phantom lung containing 12 phantom nodules in four sizes (5 mm/8 mm/10 mm/12 mm) and three CT values (one solid nodule, +100 HU; two ground glass nodules, -630 and -800 HU) was used. Six sessions of CACT (slice thickness 4.5 mm) and CT (slice thickness 5 mm) were performed. In each session, the locations of nodules were arbitrarily changed in the phantom. Three radiologists assessed the detection of a total of 72 nodules. Statistical analysis was performed for the sensitivity and positive predictive value of lung nodules between CACT and CT by the McNemar test and paired t-test (P < 0.05).ResultsSensitivity did not differ between CACT and CT, respectively (reader 1, 82% vs. 88%, P = 0.22; reader 2, 82% vs. 78%, P = 0.37; reader 3, 79% vs. 83%, P = 0.48). For nodules of 8 mm or larger, the sensitivity increased for each reader and showed no significant difference between CACT vs. CT. The positive predictive value did not differ between CACT and CT.ConclusionIn this phantom study, CT and CACT show similar sensitivity for the detection of pulmonary nodules. CACT could be used in percutaneous interventional procedures in the lungs. |
| | |
Authors:
|
Hiroki Higashihara; Keigo Osuga; Takeo Azuma; Tetsuro Nakazawa; Masahiro Yanagawa; Ayano Kikuyama; Noboru Maeda; Noriyuki Tomiyama |
Related Documents
:
|
19073536 - A case with noncoronary sinus of valsalva aneurysm: multidetector computed tomography f... 12383836 - Rectus eye muscle paths after surgical correction of convergent strabismus fixus. 17325156 - Model-based improvements in the treatment of patients with strabismus and axial high my... 16354636 - Lower lid epiblepharon as the presenting feature of spontaneous dural carotid cavernous... 20736886 - Three-dimensional morphology and kinematics of the craniovertebral junction in rheumato... 9402116 - Potential risks and artifacts of magnetic resonance imaging of self-expandable esophage... |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2011-10-3 |
Journal Detail:
|
Title: Acta radiologica (Stockholm, Sweden : 1987) Volume: - ISSN: 1600-0455 ISO Abbreviation: - Publication Date: 2011 Oct |
Date Detail:
|
Created Date: 2011-10-4 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 8706123 Medline TA: Acta Radiol Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
|
Department of Diagnostic and Interventional Radiology, Osaka University Graduate School of Medicine, Osaka. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Visual and quantitative assessment of lateral lumbar spinal canal stenosis with magnetic resonance i...
Next Document: Evaluation of apparent diffusion coefficient mappings in amnestic mild cognitive impairment using an...