Comparison of film-screen combination and digital fluorography in gastrointestinal barium examinations in a clinical setting

Barkhof, Frederik; David, Erik; Geest, Frank de

doi:10.1016/0720-048x(96)00735-8

Cited by 11 publications

(4 citation statements)

References 7 publications

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“…This also implies that the image quality of the image-intensifier recorded images is adequate for this examination. This is in accordance with previous studies on gastrointestinal procedures [13,14]. Introduction of digital techniques in diagnostic radiology emphasises the need for quality-assurance programs comprising quality control of both equipment and examination methods.…”

Section: Discussionsupporting

confidence: 90%

A comparison of analogue and digital techniques in upper gastrointestinal examinations: absorbed dose and diagnostic quality of the images

Axelsson

Bodén

Fransson³

et al. 2000

European Radiology

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This study was performed to investigate whether patient exposure and diagnostic quality of the image is significantly influenced by the introduction of digital image acquisition techniques. Evaluation was performed for three different techniques (analogue, analogue fluoro + digital radiography, digital) in examination of the upper gastrointestinal tract. The evaluation was done from data acquired in three different departments. Patient exposure was recorded as KERMA-area product (KAP) and the individual patient readings were normalised to a standard size patient. Image quality was assessed using visual grading with a reference image. The recorded KAP values were significantly higher (22.3 Gycm2) for the fully digital technique compared to the others (analogue 6.8 Gycm2, analogue + digital 3.6 Gycm2). This was due mostly to an increased number of exposures. The diagnostic quality of the image was, however, also regarded to be slightly lower for the technique giving the lowest patient dose with the smallest number of exposures (analogue + digital). The digital examination technique, as used in this study, thus resulted in significantly higher patient dose without any significant gain in diagnostic quality of the image.

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Section: Discussionsupporting

confidence: 90%

A comparison of analogue and digital techniques in upper gastrointestinal examinations: absorbed dose and diagnostic quality of the images

Axelsson

Bodén

Fransson³

et al. 2000

European Radiology

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“…In addition to the primary diagnosis, VFSE serve as a helpful diagnostic tool for therapy planning and follow-up evaluation (7,8). For precise diagnosis, good contrast and high temporal resolution are required at a preferably low dose exposure (9).…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, phantom studies are necessary to provide reliable dose values in order to facilitate adequate risk stratification in favor of increased patient safety (17). Moreover, examination methods and technical equipment of fluoroscopic examinations were continuously developed during the last decades from analogue film-screen techniques to digital detector systems including last image hold capability, pulsed fluoroscopy, and improved beam filtration with no appropriate research evaluating the clinical value and feasibility of these latest hardware and software developments for VFSE (9,18).…”

Section: Introductionmentioning

confidence: 99%

Feasibility of low-dose digital pulsed video-fluoroscopic swallow exams (VFSE): effects on radiation dose and image quality

et al. 2017

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Background Fluoroscopy is a frequently used examination in clinical routine without appropriate research evaluation latest hardware and software equipment. Purpose To evaluate the feasibility of low-dose pulsed video-fluoroscopic swallowing exams (pVFSE) to reduce dose exposure in patients with swallowing disorders compared to high-resolution radiograph examinations (hrVFSE) serving as standard of reference. Material and Methods A phantom study (Alderson-Rando Phantom, 60 thermoluminescent dosimeters [TLD]) was performed for dose measurements. Acquisition parameters were as follows: (i) pVFSE: 76.7 kV, 57 mA, 0.9 Cu mm, pulse rate/s 30; (ii) hrVFSE: 68.0 kV, 362 mA, 0.2 Cu mm, pictures 30/s. The dose area product (DAP) indicated by the detector system and the radiation dose derived from the TLD measurements were analyzed. In a patient study, image quality was assessed qualitatively (5-point Likert scale, 5 = hrVFSE; two independent readers) and quantitatively (SNR) in 35 patients who subsequently underwent contrast-enhanced pVFSE and hrVFSE. Results Phantom measurements showed a dose reduction per picture of factor 25 for pVFSE versus hrVFSE images (0.0025 mGy versus 0.062 mGy). The DAP (µGym) was 28.0 versus 810.5 (pVFSE versus hrVFSE) for an average examination time of 30 s. Direct and scattered organ doses were significantly lower for pVFSE as compared to hrVFSE ( P < 0.05). Image quality was rated 3.9 ± 0.5 for pVFSE versus the hrVFSE standard; depiction of the contrast agent 4.8 ± 0.3; noise 3.6 ± 0.5 ( P < 0.05); SNR calculations revealed a relative decreased of 43.9% for pVFSE as compared to hrVFSE. Conclusion Pulsed VFSE is feasible, providing diagnostic image quality at a significant dose reduction as compared to hrVFSE.

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“…In recent years, with the development of high-speed and high-efficiency computer, radiologic diagnosis has gradually become a new filmless technique using digital and postprocessing imaging systems. Digital GI imaging set on the basis of satisfactory double contrast GI technique possesses many advantages as follows which routine spot-film and fluororadiography do not have [23,24] .…”

Section: The Innovation Of Gastrointestinal (Gi) Radiography Techniquementioning

confidence: 99%

Reassessment of barium radiographic examination in diagnosing gastrointestinal diseases

Jiu-ru¹

1999

WJG

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Comparison of film-screen combination and digital fluorography in gastrointestinal barium examinations in a clinical setting

Cited by 11 publications

References 7 publications

A comparison of analogue and digital techniques in upper gastrointestinal examinations: absorbed dose and diagnostic quality of the images

A comparison of analogue and digital techniques in upper gastrointestinal examinations: absorbed dose and diagnostic quality of the images

Feasibility of low-dose digital pulsed video-fluoroscopic swallow exams (VFSE): effects on radiation dose and image quality

Reassessment of barium radiographic examination in diagnosing gastrointestinal diseases

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