Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “Computers, Handheld”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 955 records · Page 53Linked to original sources
PubMed2003

Automated identification of shortcuts to patient data for a wireless handheld clinical information system.

Inadequate access to patient information at the point of care has been identified as an impediment to the health care process. To create clinical computing tools that are useful to and used by clinicians, developers of clinical information systems must have accurate models of the users for whom their systems are intended. To create these models, the information needs of clinicians must be understood. While the wireless handheld environment offers many advantages such as the ability to provide mobile access to information, there are a number of challenges. Developing for this environment differs from the laptop and desktop environments due to features such as processing power, screen size, input mechanism, and bandwidth. PalmCIS (Palm-based Clinical Information System) is a clinical application being developed at New York Presbyterian Hospital (NYPH) that provides clinicians with access to patient data via a wireless handheld device. We are using an automated technique to uncover patient-specific information needs of clinicians while using a patient record system. With the results, we can enhance PalmCIS.

Computers, Handheld↗
PubMed2005

[Minimally invasive neurosurgical methods in treatment of pharmacoresistant epilepsy].

The first clinical attempts at neuromodulation in the form of applying functional electrostimulations started some thirty years ago. Nowadays, it is obvious that the approach to neuromodulation and functional electrostimulation has changed significantly. Neuromodulation tends to affect the disturbed function either by the modulation of neuronal signals or by abolition of dysfunction, preserving the intact central nervous system. The mechanism of activity is connected through direct afferent projections, neurotransmitter modulation and neuronal network regulation. NeuroCybernetic Prosthesis (NCP; Cyberonics) is a vagal nerve stimulator consisting of a pulse generator, bipolar VNS lead, programming wand with accompanying software for IBM-compatible computer, a tunneling tool and handheld magnets. NCP is placed on the left vagal nerve (middle cervical part). In 1988, Penry JK et al. inserted the first human implant. The Food and Drug Association indicated VNS as add-on therapy for diminishing the number of seizures in the adults and adolescents over 12 years of age with partial seizures, who are resistant to pharmacological therapy.

Electric Stimulation Therapy↗
PubMed2001

Computerized method of visual acuity testing: adaptation of the amblyopia treatment study visual acuity testing protocol.

PURPOSE: To report a computerized method for determining visual acuity in children using the Amblyopia Treatment Study visual acuity testing protocol. METHODS: A computerized visual acuity tester was developed that uses a programmed handheld device that uses the Palm operating system (Palm, Inc, Santa Clara, California). The handheld device communicates with a personal computer running a Linux operating system and 17-inch monitor. At a test distance of 3 m, single letters can be displayed from 20/800 to 20/12. A C program on the handheld device runs the Amblyopia Treatment Study visual acuity testing protocol. Using this method, visual acuity was tested in both the right and left eyes, and then the testing was repeated in 156 children age 3 to 7 years at four clinical sites. RESULTS: Test-retest reliability was high (r =.92 and 0.95 for and right and left eyes, respectively), with 88% of right eye retests and 94% of left eye retests within 0.1 logarithm of minimal angle of resolution (logMAR) units of the initial test. The 95% confidence interval for an acuity score was calculated to be the score +/- 0.13 logMAR units. For a change between two acuity scores, the 95% confidence interval was the difference +/- 0.19 logMAR units. CONCLUSIONS: We have developed a computerized method for measurement of visual acuity. Automation of the Amblyopia Treatment Study visual acuity testing protocol is an effective method of testing visual acuity in children 3 to 7 years of age.

Amblyopia↗
PubMed1998

Automated three-dimensional US frame positioning computed from elevational speckle decorrelation.

For ultrasonographic B-scan images collected by means of a handheld transducer moving in the elevational direction, frame spacings are computed with a speckle-decorrelation algorithm, without additional positioning hardware. Fully developed speckle volumes are automatically segmented and spacing computed from the decorrelation curves. Position accuracy is within 10% for phantoms and 15% for breast studies. The algorithm provides image-based registration, which allows accurate three-dimensional volume rendering.

Algorithms↗
PubMed2003

Using hand-held computing devices in the practice of otolaryngology-head and neck surgery.

Personal digital assistants (PDAs) have taken an increasing role in the practice of otolaryngology. PDAs provide an extension of the resources available on the user's PC. Handheld devices currently are being used for e-prescribing, charge capture, and accessing daily schedules and reference tools. Future applications may include education on medications, dictation, order entry, and test-results reporting. These applications of PDAs in the practice of otolaryngology will be reviewed.

Computers, Handheld↗
PubMed2004

Handheld-assisted field data collection for occupational risk assessment.

A computerized handheld procedure is presented in this paper. It is intended as a database complementary tool, to enhance prospective risk analysis in the field of occupational health. The Pendragon forms software (version 3.2) has been used to implement acquisition procedures on Personal Digital Assistants (PDAs) and to transfer data to a computer in an MS-Access format. The data acquisition strategy proposed relies on the risk assessment method practiced at the Institute of Occupational Health Sciences (IST). It involves the use of a systematic hazard list and semi-quantitative risk assessment scales. A set of 7 modular forms has been developed to cover the basic need of field audits. Despite the minor drawbacks observed, the results obtained so far show that handhelds are adequate to support field risk assessment and follow-up activities. Further improvements must still be made in order to increase the tool effectiveness and field adequacy.

Computers, Handheld↗
PubMed2003

Reliability of the electronic early treatment diabetic retinopathy study testing protocol in children 7 to <13 years old.

PURPOSE: To assess the test-retest reliability of the electronic Early Treatment Diabetic Retinopathy Study (E-ETDRS) visual acuity algorithm using the computerized Electronic Visual Acuity (EVA) tester in children 7 to <13 years old. DESIGN: Test-retest reliability study. METHODS: This multicenter study involved 245 subjects at four clinical sites. As the main outcome measure, visual acuity was measured twice using the E-ETDRS testing protocol on the EVA system, which uses a programmed handheld device to communicate with a personal computer and a 17-inch monitor at a 3-m test distance. RESULTS: Test-retest reliability was high (r =.94 for right eyes and 0.96 for left eyes) and for both right and left eyes, 89% of retest scores were within 0.1 logarithm of the minimal angle of resolution (logMAR) (five letters) of the initial test score and 99% of retests were within 0.2 logMAR (10 letters). Reliability was high across the age range of 7 to <13 years. Based on 95% confidence level estimates, a change in visual acuity of 0.2 logMAR (10 letters) from a previous acuity measure is unlikely to result from measurement variability. CONCLUSIONS: The E-ETDRS protocol using the EVA has high test-retest reliability in children 7 to <13 years of age. Potential advantages include better standardization across multiple sites, the ability to directly capture data electronically with an automatic acuity score calculation, the reduction of potential bias by limiting the tester's role, and the requirement of only a single testing distance for measurements from 20/800 to 20/12. This computerized testing method should be considered when visual acuity is used as an outcome measure in eye research involving children 7 to <13 years old.

Adolescent↗
PubMed1995

Hand-held computers.

Changes in healthcare delivery, such as patient-focused, point-of-service care, demand that data be entered and accessed at the site where the patient is located (bedside, ER, home, ambulance). But this is not possible without some type of portable information system. The first step to bring information to the patient's side was through the use of bedside computers, but this delivery method has received limited acceptance. At present, some hospitals have begun to use hand-held computers that follow the healthcare clinician, not the patient. Why? Fewer terminals are needed. Handhelds have become easier to use with intuitive graphical user interfaces. As the size of computers has decreased, so has the cost. Personal-sized assistants come in many formats, using proprietary or off the shelf software, or bar code attachments, and with various ports for card or cable access. Most people are becoming computer literate, adapting to downloading, recharging, inserting, and pen/keystroking.

California↗
PubMedDate not supplied

Digitizing stereoscopic optic nerve head photographs for storage and viewing using a personal computer.

Careful examination and monitoring of optic nerve head changes is essential in the treatment of patients with glaucoma. This often results in accumulation of numerous photographs and required appropriate storage space. A simple, inexpensive, and efficient means of storing and viewing stereoscopic optic nerve head photographs is described. Images were acquired with a fundus camera, on a color slide film. Slides were then scanned and digitized. A handheld stereoscope was used for stereoscopic viewing on a computer monitor. A scanning resolution of 300 dpi appeared optimal. At this resolution, the storage utilization was 16 kilobytes and the scanning time was 160 seconds per patient.

Computer Storage Devices↗
PubMedDate not supplied

Enterprise digital assistants: the progression of wireless clinical computing.

By virtue of increasingly pervasive wireless connectivity, the proliferation of wireless handheld devices in clinical care is rapidly transforming the concept of the personal digital assistant (PDA) to the enterprise digital assistant (EDA). Wireless handheld devices are becoming extensions of the central hospital information system, in which it's understood that the health care enterprise, not the clinician carrying the information-dispensing device, owns the data. The practical implication for clinicians is that, despite the potential long-term benefits of seamless, just-in-time clinical data access, this paradigm shift portends decreased efficiency in the short term, as clinicians duplicate clinical data collection on private devices. Assuming eventual clinician acceptance, EDAs can form the basis of a national real-time clinical data acquisition system that ensures uniform prescribing, decision support, and diagnosis, and the means for tracking unusual disease presentation patterns that could be indicative of bioterrorism or natural disease outbreaks.

Computer Communication Networks↗
PubMedDate not supplied

Paraspinal skin temperature patterns: an interexaminer and intraexaminer reliability study.

BACKGROUND: Paraspinal thermography is used by chiropractors as an aid in assessing the presence of vertebral subluxation. Few reliability studies have been carried out, with mixed results. Digital infrared scanning equipment is now available with location tracking that may enhance reproducibility. Digitized scans enable a computer-aided interpretation of thermographic patterns. OBJECTIVE: To assess the ability of examiners to reproduce thermal patterns. STUDY DESIGN: Repeated measures with 2 examiners assessing the same patient on 2 occasions. Thirty asymptomatic students served as subjects. METHODS: A TyTron C-3000 handheld thermographic scanner interfaced to a Microsoft Windows compatible personal computer was used for all recordings. Each examiner recorded 2 scans on each patient. It took an average of 3 minutes to complete all 4 scans. Data were exported to a spreadsheet for initial analysis, then SPSS was used for calculation of intraclass correlation coefficients (ICC). Since the starting and stopping points of scans were not always the same, care was taken to align scans visually, using well-distinguished peaks on the charts as guides. Scans were cropped to remove artifacts that might have occurred at the beginning and end of the scans. Intraexaminer and interexaminer ICCs were calculated. RESULTS: Skin temperatures ranged from 35.4 degrees C to 30.0 degrees C over all scans. The average temperatures changed little from the first to the last scans, indicating that subjects' overall skin temperatures were stable during the scanning procedure. Intraexaminer ICCs ranged from 0.953 to 0.984. The left and right channel data show slightly higher congruence than the Delta channel. The interexaminer reliability coefficients ranged from 0.918 to 0.975. Again, the Delta channel shows slightly less reliability, although the ICCs were quite high for all channels. CONCLUSION: Intraexaminer and interexaminer reliability of paraspinal thermal scans using the TyTron C-3000 were found to be very high, with ICC values between 0.91 and 0.98. Changes seen in thermal scans when properly done are most likely due to actual physiological changes rather than equipment error.

Adult↗
PubMed2001

A show of handhelds.

Explore the source record for details and available documents.

Clinical Pharmacy Information Systems↗