| Tissue harmonic imaging sonography: evaluation of image quality compared with conventional sonography. | |
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MedLine Citation:
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PMID: 9798848 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: The purpose of this study was to determine if tissue harmonic imaging (THI) sonography produced higher quality images than did conventional sonography. SUBJECTS AND METHODS: A prospective study was performed on 89 patients to compare the image quality of THI sonography with that of conventional sonography. Each examination was performed using THI sonography (transmitted frequency, 2.0 MHz; received frequency, 4.0 MHz) and conventional sonography at 2.5 and 4.0 MHz. The pancreatic area was studied in 60 patients, and other anatomic areas were studied in 68 patients. The images were then graded for penetration, detail, and total image quality. Graders were unaware of the sonographic technique. RESULTS: Of the 60 pancreatic examinations, THI sonography was the best technique for penetration in 45, detail in 54, and total image quality in 50. For the pancreas, THI sonography was significantly better than 2.5-MHz conventional sonography for penetration (p = .0002), detail (p < .0001), and total image quality (p < .0001). THI sonography was significantly better than 4.0-MHz conventional sonography for penetration (p < .0001), detail (p < .0001), and total image quality (p < .0001). Of the 68 examinations of other anatomic areas, THI sonography was the best technique for penetration in 42, detail in 57, and total image quality in 58. For other anatomic areas, THI sonography was significantly better than 2.5-MHz conventional sonography for penetration (p = .05), detail (p < .0001), and total image quality (p < .0001). THI sonography was significantly better than 4.0-MHz conventional sonography for penetration (p < .0001), detail (p < .0001), and total image quality (p < .0001). CONCLUSION: The THI technique improved sonographic image quality. |
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Authors:
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R S Shapiro; J Wagreich; R B Parsons; A Stancato-Pasik; H C Yeh; R Lao |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: AJR. American journal of roentgenology Volume: 171 ISSN: 0361-803X ISO Abbreviation: AJR Am J Roentgenol Publication Date: 1998 Nov |
Date Detail:
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Created Date: 1998-11-13 Completed Date: 1998-11-13 Revised Date: 2008-02-15 |
Medline Journal Info:
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Nlm Unique ID: 7708173 Medline TA: AJR Am J Roentgenol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1203-6 Citation Subset: AIM; IM |
Affiliation:
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Department of Radiology, Mount Sinai Medical Center, New York, NY 10029-6574, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Aged Female Humans Image Enhancement Middle Aged Pancreas / ultrasonography Prospective Studies Ultrasonography* / methods |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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