Comparing costs and efficacy of MRI

Wg, Bradley

doi:10.2214/ajr.146.6.1307

Cited by 13 publications

(3 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Even with repeated CT scanning, less than 70% of patients with lacunar syndromes might be expected to have "positive" scans. 30 While magnetic resonance imaging (MRI) may increase this yield, its generally restricted availability and current difficulties in distinguishing infarction and hemorrhage 47 mean that its role in epidemiologic and treatment studies of lacunar infarction will be limited. The similar "positivity" rates in patients with pure motor and sensorimotor stroke suggest that the clinical features may have more to do with the site than the size of the lesion.…”

Section: Discussionmentioning

confidence: 99%

The natural history of lacunar infarction: the Oxfordshire Community Stroke Project.

Bamford¹,

Sandercock²,

Jones³

et al. 1987

Stroke

389

257

View full text Add to dashboard Cite

In a consecutive series of 515 first-ever strokes in a community-based study of stroke that combined prompt clinical assessment by a study neurologist with a high rate of confirmed pathologic diagnosis, 108 cases (21%) had a lacunar syndrome. A computed tomography (CT) scan was performed in 104 (96%) of these cases. Only 3 cases had primary intracerebral hemorrhage, and another 3 had "inappropriate" areas of infarction not compatible with occlusion of a single perforating artery. "Appropriate" Infarcts were seen in 34 of the remaining 98 (35%) CT scans. The crude annual incidence of lacunar infarction was 0.33/1,000. There was no excess risk among men. The case fatality rates were 1% at 1 month and 9.8% at 1 year. The rate of recurrent strokes was 11.8% in the first year. Among patients surviving 1 year, 66% were capable of independent existence. (Stroke 1987;18:545-551)

show abstract

Section: Discussionmentioning

confidence: 99%

The natural history of lacunar infarction: the Oxfordshire Community Stroke Project.

Bamford¹,

Sandercock²,

Jones³

et al. 1987

Stroke

389

257

View full text Add to dashboard Cite

show abstract

“…Bradley (5) reported that an MRI unit in Pasadena, California, became profitable after 2 years operation at 3,000 scans per year operating 6 days per week, charging $500 per scan, and with greater than 80% collection rate. Based on a survey of 72 MRI installations, Evens (15) Most survey data have been from hospital-based or affiliated units, so little is known about freestanding units.…”

Section: Costs and Cost Analysesmentioning

confidence: 99%

The Relevance of Socioeconomic and Health Policy Issues to Clinical Research: The Case of MRI and Neuroradiology

Larson

Kent

1989

Int J Technol Assess Health Care

View full text Add to dashboard Cite

Magnetic resonance imaging (MRI) is a high-cost, new technology with great potential for improving patient care. The lack of a coherent public policy for MRI, or its predecessor computed tomography (CT), has caused considerable problems. Lack of an enunciated public policy has led to inconsistent reimbursement and reimbursement levels that develop in haphazard ways. Furthermore, diffusion has been unpredictable and has led to geographical excesses and deficiencies. Technology assessments of MRI, although numerous, have used inconsistent criteria to rate MRI's clinical efficacy. The lack of methodologically sound studies of MRI severely hampered early evaluation. This article examines these problems and suggests that the medical profession take a stronger leadership role in developing policies for expensive, promising new diagnostic technologies. The profession should promote, demand, and perform rigorous clinical evaluations of new technologies, and help develop a consensus regarding the criteria for what constitutes a clinically valuable advance in diagnostic technology.

show abstract

“…The cost of the provision of MRI diagnostic services has been reported by several groups in the USA (Evens 1984, Evens et a1 1985, Bradley 1986, Evens and Evens 1988 and UK (Cherryman 1985, Hutton 1988. Such data have produced useful measures of the cost of the technology.…”

mentioning

confidence: 99%

Costs of Magnetic Resonance Imaging Services in Public Hospitals

Crowe¹,

Hailey²,

Benness

et al. 1990

Australasian Radiology

View full text Add to dashboard Cite

Audited cost data from two public hospital installations participating in a trial of the utilisation and efficacy of magnetic resonance imaging are presented. The data cover the period July 1987 to June 1988 when both installations had attained stable patterns of operation. One hospital operated a superconductive system and the other a resistive magnetic resonance imaging unit. Depreciation and salaries represented the major components of cost.

show abstract

Comparing costs and efficacy of MRI

Cited by 13 publications

References 6 publications

The natural history of lacunar infarction: the Oxfordshire Community Stroke Project.

The natural history of lacunar infarction: the Oxfordshire Community Stroke Project.

The Relevance of Socioeconomic and Health Policy Issues to Clinical Research: The Case of MRI and Neuroradiology

Costs of Magnetic Resonance Imaging Services in Public Hospitals

Contact Info

Product

Resources

About