Real-Time Digital K-Edge Subtraction Fluoroscopy
We report in vitro and in vivo trials of K-edge fluoroscopy, by which iodine contrast concentration is displayed live, with tissue and bone images suppressed, free of patient-motion artifacts. Iodine and cerium, 125 and 225 mg/cm respectively, filter alternate TV fields of cine-pulsed 50 KVP x-rays....
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| Veröffentlicht in: | Investigative radiology 1979-07, Vol.14 (4), p.270-278 |
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| container_issue | 4 |
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| container_title | Investigative radiology |
| container_volume | 14 |
| creator | HOUK, THEODORE L KRUGER, ROBERT A MISTRETTA, CHARLES A RIEDERER, STEPHEN J SHAW, CHORNG-GANG LANCASTER, JEROME C FLEMMING, DAVID C |
| description | We report in vitro and in vivo trials of K-edge fluoroscopy, by which iodine contrast concentration is displayed live, with tissue and bone images suppressed, free of patient-motion artifacts. Iodine and cerium, 125 and 225 mg/cm respectively, filter alternate TV fields of cine-pulsed 50 KVP x-rays. Weighted subtraction of successive TV fields isolates the iodine image and simultaneously minimizes artifacts. Digital techniques are used in real time. At our present x-ray tube limit, 500 mA instantaneous current, the patient exposure is 180 mR/sec and quantum mottle limits the image quality. Integrating four successive difference images provides a compromise between mottle and smoothly moving displays. Cardiovascular images of a 17-kg dog, using 1 ml/kg Renografin-60 injected into a foreleg vein, show that a 15-cm chest thickness is our present practical maximum. This method may be useful in diagnosing cardiovascular anomalies in infants without catheterization or suspension of breathing. |
| doi_str_mv | 10.1097/00004424-197907000-00002 |
| format | Article |
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This method may be useful in diagnosing cardiovascular anomalies in infants without catheterization or suspension of breathing.</description><subject>Animals</subject><subject>Contrast Media</subject><subject>Dogs</subject><subject>Fluoroscopy - methods</subject><subject>Heart - diagnostic imaging</subject><subject>Iodine</subject><subject>Models, Structural</subject><subject>Subtraction Technique</subject><issn>0020-9996</issn><issn>1536-0210</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1979</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp1kUtPAyEUhYnxVav_wMWs3KG8Boalqa0am5hoXROYoe0oUyrMpOm_lzq1O--G3HPOvZAPADKMbjGS4g6lYowwiKWQSKQO7iRyBAY4pxwigtExGCQFQSklPwcXMX7uEgLRM3BKizxnYgDQm9UOzurGZg_1om61y17guFrY7L0zbdBlW_tVNnGdDz6Wfr29BCdz7aK92p9D8DEZz0ZPcPr6-Dy6n8KS5oxAgrXRRYEqSjiTVUW0FJUgjHNsCoFwyaydM2Qsq0guNbOkMIwhKktuiMgNHYKbfu86-O_OxlY1dSytc3plfReVYIJzgkUKFn2wTC-Mwc7VOtSNDluFkdqxUn-s1IHVr0TS6PX-js40tjoM9nCSzXp7411rQ_xy3cYGtUzE2qX67wfoD4EIcXk</recordid><startdate>197907</startdate><enddate>197907</enddate><creator>HOUK, THEODORE L</creator><creator>KRUGER, ROBERT A</creator><creator>MISTRETTA, CHARLES A</creator><creator>RIEDERER, STEPHEN J</creator><creator>SHAW, CHORNG-GANG</creator><creator>LANCASTER, JEROME C</creator><creator>FLEMMING, DAVID C</creator><general>Lippincott-Raven Publishers</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>197907</creationdate><title>Real-Time Digital K-Edge Subtraction Fluoroscopy</title><author>HOUK, THEODORE L ; KRUGER, ROBERT A ; MISTRETTA, CHARLES A ; RIEDERER, STEPHEN J ; SHAW, CHORNG-GANG ; LANCASTER, JEROME C ; FLEMMING, DAVID C</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3542-21aba880d32649dd2a97d724661b8701c4eef40be4d259a4e28b44039c6b275b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1979</creationdate><topic>Animals</topic><topic>Contrast Media</topic><topic>Dogs</topic><topic>Fluoroscopy - methods</topic><topic>Heart - diagnostic imaging</topic><topic>Iodine</topic><topic>Models, Structural</topic><topic>Subtraction Technique</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>HOUK, THEODORE L</creatorcontrib><creatorcontrib>KRUGER, ROBERT A</creatorcontrib><creatorcontrib>MISTRETTA, CHARLES A</creatorcontrib><creatorcontrib>RIEDERER, STEPHEN J</creatorcontrib><creatorcontrib>SHAW, CHORNG-GANG</creatorcontrib><creatorcontrib>LANCASTER, JEROME C</creatorcontrib><creatorcontrib>FLEMMING, DAVID C</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Investigative radiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>HOUK, THEODORE L</au><au>KRUGER, ROBERT A</au><au>MISTRETTA, CHARLES A</au><au>RIEDERER, STEPHEN J</au><au>SHAW, CHORNG-GANG</au><au>LANCASTER, JEROME C</au><au>FLEMMING, DAVID C</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Real-Time Digital K-Edge Subtraction Fluoroscopy</atitle><jtitle>Investigative radiology</jtitle><addtitle>Invest Radiol</addtitle><date>1979-07</date><risdate>1979</risdate><volume>14</volume><issue>4</issue><spage>270</spage><epage>278</epage><pages>270-278</pages><issn>0020-9996</issn><eissn>1536-0210</eissn><abstract>We report in vitro and in vivo trials of K-edge fluoroscopy, by which iodine contrast concentration is displayed live, with tissue and bone images suppressed, free of patient-motion artifacts. 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| identifier | ISSN: 0020-9996 |
| ispartof | Investigative radiology, 1979-07, Vol.14 (4), p.270-278 |
| issn | 0020-9996 1536-0210 |
| language | eng |
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| source | MEDLINE; Journals@Ovid Complete |
| subjects | Animals Contrast Media Dogs Fluoroscopy - methods Heart - diagnostic imaging Iodine Models, Structural Subtraction Technique |
| title | Real-Time Digital K-Edge Subtraction Fluoroscopy |
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