Visual Search Patterns in Roentgen Diagnosis

Tuddenham, William J.; Calvert, William P.

doi:10.1148/76.2.255

Cited by 56 publications

(22 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A false-negative (FN) diagnosis due to a perception or cognitive error is a recognised problem [1]. Evidence from earlier eye-tracking experiments using chest images reveals that most radiologists do not follow a systematic search strategy [2,3], and interpretation of these images can be influenced significantly by the clinical information provided by referrers [4][5][6][7]. Clinical information is provided as a guide for patient diagnosis and can be disease specific, symptom specific, location specific or a combination of these.…”

Section: Introductionmentioning

confidence: 99%

Does Expectation of Abnormality Affect the Search Pattern of Radiologists When Looking for Pulmonary Nodules?

et al. 2016

View full text Add to dashboard Cite

This experiment investigated whether there might be an effect on the visual search strategy of radiologists during image interpretation of the same adult chest radiographs when given different clinical information. Each of 17 experienced radiologists was asked to interpret a set of 57 (10 abnormal) posteroanterior chest images to identify the presence of pulmonary lesions using differing clinical information (leading to unknown, low and high expectations of prevalence). Eye position metrics (search time, dwell time and time to first fixation) were compared for normal and abnormal images, as well as between conditions. For all images, there was a significantly longer search time at high prevalence expectation compared to low prevalence expectation (W = 75.19, P = <0.0001). Mann-Whitney analysis of the abnormal images demonstrated that the dwell time on correctly identified lesions was significantly shorter at low prevalence expectation compared to both unknown (U = 364.5, P = 0.02) and high prevalence expectation (U = 397.0, P = 0.0002). Visual search patterns of radiologists appear to be affected by changing a priori information where such information fosters an expectation of abnormality.

show abstract

Section: Introductionmentioning

confidence: 99%

Does Expectation of Abnormality Affect the Search Pattern of Radiologists When Looking for Pulmonary Nodules?

et al. 2016

View full text Add to dashboard Cite

show abstract

“…An important way to achieve this is by examining how radiologists actually go about the interpretation of images by conducting eye tracking studies. Past studies that have used eye tracking to analyze conventional radiography have covered extensive research topics, such as radiologists' reading strategy, [1][2][3][4][5][6] perceptual and cognitive processes during the interpretative process, [7][8][9][10][11][12][13][14] differences in gaze patterns of experts and novices and how expert visual search could be trained, [15][16][17][18][19] display properties that are associated with superior performance, [20][21][22] the comparison of visual processes when satisfaction of search occurred, 23,24 gaze characteristics that are linked to different decision outcomes 25,26 and how these could be used to provide perceptually based feedback, [27][28][29][30][31][32][33][34] or how lesion properties influence radiologists' perception and decision making processes. [35][36][37][38][39] A number of studies have even looked at how eye tracking studies need to be conducted to yield the most valid results.…”

Section: Introductionmentioning

confidence: 99%

Review of prospects and challenges of eye tracking in volumetric imaging

Venjakob

Mello‐Thoms

2015

J. Med. Imag

View full text Add to dashboard Cite

Abstract. While eye tracking research in conventional radiography has flourished over the past decades, the number of eye tracking studies that looked at multislice images lags behind. A possible reason for the lack of studies in this area might be that the eye tracking methodology used in the context of conventional radiography cannot be applied one-on-one to volumetric imaging material. Challenges associated with eye tracking in volumetric imaging are particularly associated with the selection of stimulus material, the detection of events in the eye tracking data, the calculation of meaningful eye tracking parameters, and the reporting of abnormalities. However, all of these challenges can be addressed in the design of the experiment. If this is done, eye tracking studies using volumetric imaging material offer almost unlimited opportunity for perception research and are highly relevant as the number of volumetric images that are acquired and interpreted is rising.

show abstract

“…Radiology workstation memory often needs to contain over 60 Mbytes of images; cost prohibits using this much main memory. We have found 32 that virtual memory can be ah effective alternative when three requirements are met: first, there must be sufficient main memory to store • mŸ of 16 Mbyte for a single screen workstation. Second, data transfer between secondary storage and the framebuffer must be very fast.…”

Section: Methodsmentioning

confidence: 99%

Designing a radiology workstation: A focus on navigation during the interpretation task

Beard

1990

J Digit Imaging

View full text Add to dashboard Cite

The potential cost and Iogistic improvemants of picture archiva and communication systam (PACS) over film-based medical image management awaits the development of viable radiology workstations (RWS) targeted for the primary interpratation task. While the quality of elactronically displayed images has been highly investigated, only recently have design and experimental work been devoted to the other critical aspact of workstation design, mainly its computer human interaction, and, in particular, its navigation. By RWS navigation wa includa its underlying mental model or metaphor, and the commands and hand motions used to access patient folders and to display images. For the last 5 yaars, the University of North Carolina (UNC) Medical Image Display Rasearch Group has analyzed the primary interpretation task and designed, developed, and evaluated the FilmPlana series of RWS prototypas. This work has helpad us understand both RWS requirements and viable design approaches. In this papar, we present our workstation design strategy and our observations and understanding of the issues and problems with RWS navigation. To illustrata the discussion, we describe FilmPlane2, the UNC radiology workstation. We also briefly detail three rapid-evaluation techniquas (including two observar axperiments) for quickly gaining feedback on a design. Thase observations and evaluation techniques may aid otber RWS designers in producing superior tools for the clinicians. 9 1990 by W.B. Saunders Company.KEY WORDS: computar human interaction, radiology workstations, human factors, medical imaga display. DESIGNING AN acceptable computerhuman interaction (CHI) is art rather than science. Nevertheless, a general methodology has been widely adapted that allows for the rapid evolution toward a viable product. 1 First, a well designed CHI starts with a complete requirements analysis including an understanding of the users and their tasks. Second, a clear mental

show abstract

Visual Search Patterns in Roentgen Diagnosis

Cited by 56 publications

References 0 publications

Does Expectation of Abnormality Affect the Search Pattern of Radiologists When Looking for Pulmonary Nodules?

Does Expectation of Abnormality Affect the Search Pattern of Radiologists When Looking for Pulmonary Nodules?

Review of prospects and challenges of eye tracking in volumetric imaging

Designing a radiology workstation: A focus on navigation during the interpretation task

Contact Info

Product

Resources

About