Abstract：
:This article presents a review of image quality assessment methods for monochrome CRTs in the field as opposed to the laboratory. The review includes image quality programs at the University of Washington, the University of Texas at Houston, the University of Michigan, and the University of Arizona. CRT manufacturers and display-board suppliers also are concerned with image quality, particularly with respect to the life time of the CRT. The programs show that the need for image quality assessment for CRTs in the clinic is recognized. Although several experimental programs are in place, there is no universally accepted program. In fact, the clinical consequences of degraded monitor performance are not even well known and must be established. The existing programs mainly are based on the most comprehensive test pattern, the SMPTE pattern. The programs permit assessment of maximum luminance, display function, dynamic range, and contrast. They do not permit assessment of spatial resolution. There is no easy method to determine the spatial resolution in the field as precisely as desired simply because there are no visual aids (test patterns) to reliably determine loss of spatial resolution and signal-to-noise ratio using human observers. This report also presents initial and encouraging data obtained at the University of Arizona with a CCD camera. This CCD camera has the potential to be developed into an important tool for practical CRT evaluation for the clinic.
journal_name
J Digit Imagingjournal_title
Journal of digital imagingauthors
Roehrig H,Willis CE,Damento MAdoi
10.1007/BF03168851subject
Has Abstractpub_date
1999-11-01 00:00:00pages
152-65issue
4eissn
0897-1889issn
1618-727Xjournal_volume
12pub_type
杂志文章abstract：:We have now analyzed the use and benefits of four Strategic Thinking Tools for Radiology: the Vision Statement, the High Five, the Two-by-Two, and Real-Win-Worth. Additional tools will be provided during the tutorial. The tools provided above should be considered as examples. They all contain the 10 benefits outlined ...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03168638
更新日期：1997-08-01 00:00:00
abstract：:We quantitatively investigate the influence of image registration, using open-source software (3DSlicer), on kinetic analysis (Tofts model) of dynamic contrast enhanced MRI of early-stage breast cancer patients. We also show that registration computation time can be reduced by reducing the percent sampling (PS) of vox...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-020-00374-6
更新日期：2020-10-01 00:00:00
abstract：:Major problems in treating breast cancer are the early detection of tumors and accurate biopsy of small volumes of breast (mamma) tissue. This report presents an elastic registration algorithm of two x-ray mammograms and a corresponding magnetic resonance imaging (MRI) volume. To cope with the soft tissue deformation ...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03190295
更新日期：2001-06-01 00:00:00
abstract：:Medical documentation is one of the primary methods by which physicians share clinical information and impressions over time with one another. As the adage says, "a picture is worth a thousand words," and physicians have started leveraging consumer mobile technology to share images with one another. However, image sha...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-019-00231-1
更新日期：2020-02-01 00:00:00
abstract：:Automatic bone segmentation of computed tomography (CT) images is an important step in image-guided surgery that requires both high accuracy and minimal user interaction. Previous attempts include global thresholding, region growing, region competition, watershed segmentation, and parametric active contour (AC) approa...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-009-9210-z
更新日期：2010-12-01 00:00:00
abstract：:The goal of this study is to provide the clinical end users of an enterprisewide picture archiving and communication system/Web application with a thorough understanding of the application and education to maintain patient privacy and protection. ...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-002-5101-2
更新日期：2002-01-01 00:00:00
abstract：:The objective of this study was to determine the differential cost between film-based radiology and a hospital-wide picture archiving and communication system (PACS) implemented all at once. The cash flow and running costs of PACS and film-based operation were measured over an 8-year time horizon. When the hospital-wi...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-006-0632-6
更新日期：2006-01-01 00:00:00
abstract：:Breast cancer is the most common type of malignancy diagnosed in women. Through early detection and diagnosis, there is a great chance of recovery and thereby reduce the mortality rate. Many preliminary tests like non-invasive radiological diagnosis using ultrasound, mammography, and MRI are widely used for the diagno...
journal_title：Journal of digital imaging
pub_type： 杂志文章,评审
doi：10.1007/s10278-019-00295-z
更新日期：2020-10-01 00:00:00
abstract：:Perfusion CT of the liver typically involves scanning the liver at least 20 times, resulting in a large radiation dose. We developed and validated a simplified model of tumor blood supply that can be applied to standard triphasic scans and evaluated whether this can be used to distinguish benign and malignant liver le...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-014-9725-9
更新日期：2015-04-01 00:00:00
abstract：:Architectural distortion is an important sign of breast cancer, but because of its subtlety, it is a common cause of false-negative findings on screening mammograms. This paper presents methods for the detection of architectural distortion in mammograms of interval cancer cases taken prior to the detection of breast c...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-009-9257-x
更新日期：2010-10-01 00:00:00
abstract：:The purpose of this study was to develop and evaluate a computerized method of calculating a breast density index (BDI) from digitized mammograms that was designed specifically to model radiologists' perception of breast density. A set of 153 pairs of digitized mammograms (cranio-caudal, CC, and mediolateral oblique, ...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03168733
更新日期：1998-08-01 00:00:00
abstract：:The standard definition of high-risk individuals for lung cancer was not uniform and the value of chest digital radiography (DR) in lung cancer screening was still unproven. The aim of this study was to assess whether the original questionnaire named as "Self-evaluation Scoring Questionnaire for High-risk Individuals ...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-012-9468-4
更新日期：2013-02-01 00:00:00
abstract：:Complex deformities of the spine, like scoliosis, are evaluated more precisely using stereo-radiographic 3D reconstruction techniques. Primarily, it uses six stereo-corresponding points available on the vertebral body for the 3D reconstruction of each vertebra. The wireframe structure obtained in this process has poor...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-015-9841-1
更新日期：2016-04-01 00:00:00
abstract：:In this paper, a novel lesion segmentation within breast ultrasound (BUS) image based on the cellular automata principle is proposed. Its energy transition function is formulated based on global image information difference and local image information difference using different energy transfer strategies. First, an en...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-011-9450-6
更新日期：2012-10-01 00:00:00
abstract：:There has been increasing interest in adjusting CT radiation dose data for patient body size. A method for automated computation of the abdominal effective diameter of a patient from a CT image has previously only been tested in adult patients. In this work, we tested the method on a set of 128 pediatric patients aged...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-013-9623-6
更新日期：2013-12-01 00:00:00
abstract：:To compare hard copies and soft copies processed with linear and nonlinear conversion of skeletal fractures, we performed a receiver-operating characteristics study of 25 digital radiographs. There was no statistical difference between hard copies with linear and nonlinear conversion. However, it may be difficult to d...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03168067
更新日期：1995-02-01 00:00:00
abstract：:Rather than perpetuating the struggle, "who controls the PACS, Radiology or Information Technology (IT)," Community Hospital of the Monterey Peninsula (CHOMP) took the approach of incorporating IT support within the Radiology Department. CHOMP faced the challenge of staffing Radiology computer systems and networks by ...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-002-5048-3
更新日期：2002-01-01 00:00:00
abstract：:Voice recognition (VR) and picture archiving and communication system (PACS) both have advantages and disadvantages in radiologic practice. We describe a fully integrated VR/PACS system running on a single platform. Integration optimizes the positive features of both systems and creates a synergy that is not otherwise...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03190351
更新日期：2001-06-01 00:00:00
abstract：:A novel medical image quality index using grey relational coefficient calculation is proposed in this study. Three medical modalities, DR, CT and MRI, using 30 or 60 images with a total of 120 images used for experimentation. These images were first compressed at ten different compression ratios (10 ∼ 100) using a med...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-010-9353-y
更新日期：2011-10-01 00:00:00
abstract：:The interfacing of digital image acquisition modalities to the picture archiving and communication system (PACS) plays a major part in the conversion from a traditional film-based radiology practice to one that relies almost entirely on soft-copy reading. The Baltimore Veterans Affairs Medical Center (VAMC) is one of ...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03167632
更新日期：2000-05-01 00:00:00
abstract：:Panoramic radiography using a slit beam and film/screen receptor is standard for the emergency room evaluation of mandibular fractures and also in dentistry. This study compared the spatial resolution, area distortion factors, and the dosage considerations for a panoramic system where standard film/screen and a charge...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03168293
更新日期：1998-08-01 00:00:00
abstract：:In this work, two different approaches are proposed for region of interest (ROI) segmentation using transrectal ultrasound (TRUS) images. The two methods aim to extract informative features that are able to characterize suspicious regions in the TRUS images. Both proposed methods are based on multi-resolution analysis...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-008-9124-1
更新日期：2009-10-01 00:00:00
abstract：:Transitioning to a filmless department is no easy task, especially at a large academic medical center. At the University of Medicine and Dentistry of New Jersey-New Jersey Medical School, a phased modality integration schedule was implemented to allow the technical and clinical staff to gradually absorb all of the cha...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-002-5044-7
更新日期：2002-01-01 00:00:00
abstract：:The Fuhrman nuclear grade is a recognized prognostic factor for patients with clear cell renal cell carcinoma (CCRCC) and its pre-treatment evaluation significantly affects decision-making in terms of management. In this study, we aimed to assess the feasibility of a combined approach of radiomics and machine learning...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-020-00336-y
更新日期：2020-08-01 00:00:00
abstract：:The study investigates the effect of a substantial dose reduction on the variability of lung nodule volume measurements by assessing and comparing nodule volumes using a dedicated semiautomated segmentation software on ultralow-dose computed tomography (ULD-CT) and standard-dose computed tomography (SD-CT) data. In 20...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-008-9157-5
更新日期：2010-02-01 00:00:00
abstract：:In this report, a novel technique is proposed for computer-aided automatic extraction of microcalcifications in a digital mammogram. First, the microcalcifications are detected by morphological filtering, followed by entropy-based thresholding. Next, the microcalcifications are segmented by computing regional watershe...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/BF03167642
更新日期：2000-05-01 00:00:00
abstract：:The authors present a unique medical technical application for illustrating the success and/or failure of the physiological healing process as a dynamically morphed video. Two examples used in this report include the healing of a severely fractured humerus from an explosion in Iraq and the other of dramatic tissue des...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-006-1050-5
更新日期：2007-09-01 00:00:00
abstract：:Optical imaging using near-infrared light is used for noninvasive probing of tissues to recover vascular and molecular status of healthy and diseased tissues using hemoglobin contrast arising due to absorption of light. While multimodality optical techniques exist, visualization techniques in this area are limited. Ad...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-011-9362-5
更新日期：2011-12-01 00:00:00
abstract：:Sacroiliac (SI) joint dislocations and sacral fractures of the pelvis can be stabilized by SI screws; however, screw insertion into a sacral isthmus region is risky for the adjacent neurovascular structures. Therefore, shape analyses of general SI screw corridors or safety zones are of great surgical interest; however...
journal_title：Journal of digital imaging
pub_type： 杂志文章
doi：10.1007/s10278-010-9327-0
更新日期：2011-08-01 00:00:00
abstract：:Radiology 2.0: One Night in the ED is an app that presents users with scrollable CT images for common scenarios found in any Emergency Department (ED). A great tool for a junior resident before starting call, it allows the user to build confidence by experiencing a simulated environment of viewing all images of a case...
journal_title：Journal of digital imaging
pub_type： 杂志文章,评审
doi：10.1007/s10278-015-9797-1
更新日期：2015-08-01 00:00:00
