A full digital, high definition video system (1080i) for laryngoscopy and stroboscopy

Tsunoda, Atsunobu; Hatanaka, Akio; Tsunoda, Reiko; Kishimoto, Seiji; Tsunoda, Koichi

doi:10.1017/s0022215107000072

Cited by 14 publications

(9 citation statements)

References 8 publications

(14 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Yanagisawa et al 7 was one of the first to couple a commercial video camera for recording of laryngeal images. In 2008, Tsunoda et al 3 reported using a high definition video camera with an endoscope adapter to record full digital high definition video at 1080 effective scanning lines. He reported superior images comparable to images from a digital camera.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

4K Video-Laryngoscopy and Video-Stroboscopy

Woo

2015

Ann Otol Rhinol Laryngol

View full text Add to dashboard Cite

Introduction: 4K video is a new format. At 3840 × 2160 resolution, it has 4 times the resolution of standard 1080 high definition (HD) video. Magnification can be done without loss of resolution. This study uses 4K video for videostroboscopy. Material and Method: Forty-six patients were examined by conventional video-stroboscopy (digital 3 chip CCD) and compared with 4K video-stroboscopy. The video was recorded on a Blackmagic 4K cinema production camera in CinemaDNG RAW format. The video was played back on a 4K monitor and compared to standard video. Pathological conditions included: polyps, scar, cysts, cancer, sulcus, and nodules. Results: Successful 4K video recordings were achieved in all subjects using a 70° rigid endoscope. The camera system is bulky. The examination is performed similarly to standard video-stroboscopy. Playback requires a 4K monitor. As expected, the images were far clearer in detail than standard video. Stroboscopy video using the 4K camera was consistently able to show more detail. Two patients had diagnosis change after 4K viewing. Conclusion: 4K video is an exciting new technology that can be applied to laryngoscopy. It allows for cinematic 4K quality recordings. Both continuous and stroboscopic light can be used for visualization. Its clinical utility is feasible, but usefulness must be proven.

show abstract

Section: Discussionmentioning

confidence: 99%

“…1,2 Today's high definition video (HD) can be used for rigid laryngoscopy and stroboscopy. 3 Commercial systems now use HD at 960 × 720 with 720 TVL for operating room endoscopy and for rigid endoscopy. Fiberoptic stroboscopy have been limited to S-VHS resolution of 560 × 480.…”

Section: Introductionmentioning

confidence: 99%

4K Video-Laryngoscopy and Video-Stroboscopy

Woo

2015

Ann Otol Rhinol Laryngol

View full text Add to dashboard Cite

show abstract

“…The advent of distal-chip nasal laryngoscopy [7] offers superior quality of structural imaging that HSV and VKG will not be able to achieve in the near future, especially with nasal endoscopy. A late publication [8] reported the advent of a full high-definition (1080i) videostroboscopy system. Despite of emerging new techniques, videostroboscopy will continue to offer certain advantages.…”

Section: Videostroboscopy and Videokymographymentioning

confidence: 99%

State of the art laryngeal imaging: research and clinical implications

Deliyski

Hillman

2010

Current Opinion in Otolaryngology &Amp; Head &Amp; Neck Surgery

View full text Add to dashboard Cite

Purpose of Review-This paper provides a review of the latest advances in videostroboscopy, videokymography and high-speed videoendoscopy, and outlines the development of new laryngeal imaging modalities based on optical coherence tomography, laser depth-kymography, and magnetic resonance imaging, published in the past 2 years. Videostroboscopy and Videokymography:Image quality has improved and several image processing and measurement techniques have been published. High-speed videoendoscopy:Significant progress has been made through increased sensitivity and frame rates of the cameras, and the development of facilitative playbacks, phonovibrography and several image segmentation and measurement methods. Clinical evidence was presented through applications in phonosurgery, comparisons with videostroboscopy, normative data, and better understanding of voice production. Optical coherence tomography:Latest developments allow for the capture of dynamic high resolution cross-sectional images of the vibrating vocal fold mucosa during phonation. Depth-kymography:New laser technique allowing recording of the vertical movements of the vocal folds during phonation in calibrated spatial values. Laryngeal magnetic resonance:New methods allow high-resolution imaging of laryngeal tissue microstructure, or measuring of dynamic laryngeal structures during phonation.Summary-The endoscopic laryngeal imaging techniques have made significant advances increasing their clinical value, while techniques providing new types of potentially clinically-relevant information have emerged.

show abstract

“…[1][2][3][4][5][6][7] The cost of video recording and archiving units available from manufacturers of endoscopes is often substantial. 5 In this report, we describe the use of a portable media recorder as an affordable solution for the recording and archiving of endoscopy findings.…”

Section: Introductionmentioning

confidence: 99%