Clinical evaluation of unsharp masking and slit scanning techniques in chest radiography

Journal Article · Sun May 01 00:00:00 EDT 1983 · Radiology; (United States)

DOI:https://doi.org/10.1148/radiology.147.2.6340155· OSTI ID:5685044

Armstrong, II, J D; Sorenson, J A; Nelson, J A; Tocino, I; Lester, P D; Janes, J O; Niklason, L T; Stanish, W

Conventional, unsharp masking, and slitmask (combining slip radiography and unsharp masking) techniques were compared in a clinical nodule detection study in cancer patients who were at risk for metastatic lung disease. Unsharp masking improved detection rates for nodules located in poorly penetrated areas of the chest (25% vs. 52%), with no difference in detection rates for other areas of the image and no change in false-positive detection rates. Results with the slit-mask techniques did not differ significantly from those obtained with conventional techniques. In general, the differences in nodule detection rates noted between different techniques in the clinical study were less than had been observed in earlier phantom-nodule detection studies. Possible reasons for these findings are discussed.

• OSTI ID: 5685044
• Journal Information: Radiology; (United States), Journal Name: Radiology; (United States) Vol. 147:2; ISSN RADLA
• Country of Publication: United States
• Language: English

Related Subjects

550602* -- Medicine-- External Radiation in Diagnostics-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
BIOMEDICAL RADIOGRAPHY
BODY
BODY AREAS
CHEST
DIAGNOSIS
DIAGNOSTIC TECHNIQUES
DISEASES
IRRADIATION PROCEDURES
LUNGS
MEDICINE
NEOPLASMS
NUCLEAR MEDICINE
ORGANS
PATIENTS
RADIOLOGY
RESPIRATORY SYSTEM