Aims and objectives
To evaluate yhe use of mobile technologies that allow expert radiologist in acute stroke to diagnose this pathology remotly.
To determine and compare the clinical performance of observers using a conventional mobile device (IPAD) against the reference system (specialized medical monitor).
Methods and materials
This retrospective study was approved by the ethics committee of our institution,
and informed consent was not required.
A factorial design with repeated measures was used in this study.
The reliability refers to the reproducibility or agreement in measurements of the variables for each case rated by different observers (i.e.,
or rated by each observer using different treatments (i.e.,
interdevice reliability).The agreement assessment can be achieved using the kappa statistic.
1.1. Sample and standard:
Patients with symptoms of acute stroke,
who attended emergency...
Agreements on the lesion classification:
Intradevice agreements on the lesion classification observed in our study,
for individual radiologist and for the overall group are presented in Table 2.
Observed agreements were ranged from 63.6–82.6%,
with kappa values ranged from 0.47–0.74,
and agreements ranked as “Substantial” for two radiologists and “Moderate” for four radiologists (P < 0.001).
The overall radiologists observed agreement on lesion classification was 73.0%,
with a value kappa of 0.6 and ranked as “Moderate” (P < 0.001).
These values were evaluated for...
high observed concordances for interrater and intrarater agreemments on the variables evaluated (with respect of other studies on brain CT),
and agreements ranged from moderate to almost perfect,
were observed in this study.
Such results allow us to suggest that in the telestroke context of our hospital,
and performing interpretation as close and realistic as they are in routine interpretation in our hospital,
the reliability of the evaluated mobile solution for interpreting brain CT of patients with signs of acute stroke was assured....
Didier Sossa M.D.
Fundación Santa Fe de Bogotá.
Recommendations on stroke prevention,
Report of the WHO Task Force on Stroke and other Cerebrovascular Disorders.
2. Taylor TN,
Lifetime Cost of Stroke in the United States.
3. Bonita R.
Epidemiology of stroke.
The Lancet 1992;339:342-344.
4. Saposnik G,
Del Brutto OH,
Stroke in South America: A Systematic Review of Incidence,
and Stroke Subtypes.
Stroke 2003;34:2103-2107 doi: 10.1161/01.str.0000088063.74250.db.
5. Silva FA,