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Radiotelemetry methodology

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Radiotelemetry methodology is a data collection technique that utilizes radio frequency signals to remotely transmit data from a source to a receiver. This approach allows for the wireless monitoring and recording of various parameters, such as physiological data, without the need for physical connections. The core function of this methodology is to enable the remote acquisition and transmission of information.

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Dataquest art software, by Data Sciences International (3 mentions) Dataart3, by Data Sciences International (1 mentions)

7 protocols using radiotelemetry methodology

1

Continuous Remote Cardiovascular Monitoring

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Radiotelemetry methodology (Data Sciences International, Inc., St. Paul, MN) was used to track changes in cardiovascular function by monitoring heart rate (HR), and ECG waveforms immediately following telemeter implantation, through exposure until 24 hours post-exposure. This methodology provided continuous monitoring and collection of physiologic data from individual mice to a remote receiver. Sixty-second ECG segments were recorded every 5 minutes during the pre- and post-exposure periods and continuously during exposure (baseline and hours 1-4); HR was automatically obtained from the waveforms (Dataquest ART Software, version 3.01, Data Sciences International, St. Paul, MN, USA).
Kurhanewicz N., McIntosh-Kastrinsky R., Tong H., Walsh L., Farraj A.K, & Hazari M.S. (2014). Ozone co-exposure modifies cardiac responses to fine and ultrafine ambient particulate matter in mice: concordance of electrocardiogram and mechanical responses. Particle and Fibre Toxicology, 11, 54.
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2

Continuous ECG Monitoring in Conscious Rats

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Radiotelemetry methodology (Data Sciences International, Inc.) allowed constant monitoring of electrocardiographic data in conscious and unrestrained rats from implantation until sacrifice. Electrocardiographic data was monitored by remote receivers (DataART3.01; Data Sciences International, Inc.) positioned under the home cages within the animal facility, and under the exposure cages within the exposure chambers. In home cages, sixty-second segments of ECG waveforms were acquired and saved at 15-minute intervals from surgical recovery through sacrifice not including the exposure period. Pre-exposure baseline data was collected from home cages, as well as a 45 min baseline in exposure cages after acclimation for one hour. During the 4 hr exposure, sixty-second segments were acquired and saved at 5-minute intervals. After exposure, rats were monitored in home cages until the next exposure. All rats were monitored until the beginning of necropsy, approximately 18 hrs after exposure. HR was automatically obtained from the ECG waveforms with data acquisition software (DataART3.01; Data Sciences International, Inc.).
Farraj A.K., Walsh L., Haykal-Coates N., Malik F., McGee J., Winsett D., Duvall R., Kovalcik K., Cascio W.E., Higuchi M, & Hazari M.S. (2015). Cardiac effects of seasonal ambient particulate matter and ozone co-exposure in rats. Particle and Fibre Toxicology, 12, 12.
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3

Continuous Cardiovascular Monitoring in Mice

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Radiotelemetry methodology (Data Sciences International, Inc., St. Paul, MN) was used to track changes in cardiovascular function by monitoring heart rate (HR), and ECG waveforms immediately following telemeter implantation, through exposure until 24hours post-exposure. This methodology provided continuous monitoring and collection of physiologic data from individual mice to a remote receiver. Sixty-second ECG segments were recorded every 15 minutes during the pre- and post-exposure periods and every 5 minutes during exposure (baseline and hours 1–4); HR was automatically obtained from the waveforms (Dataquest ART Software, version 3.01, Data Sciences International, St. Paul, MN, USA). All animals were acclimated to the exposure chambers on two separate occasions; even then, an increase in HR was always observed when animals were placed in the chamber on the day of exposure.
Hazari M.S., Stratford K.M., Krantz T., King C., Krug J., Farraj A.K, & Gilmour I. (2018). Comparative cardiopulmonary effects of particulate matter- and ozone-enhanced smog atmospheres in mice. Environmental science & technology, 52(5), 3071-3080.
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4

Radiotelemetry for Cardiovascular Monitoring

Cited 1 time
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Radiotelemetry methodology (Data Sciences International, Inc., St. Paul, MN) was used to track changes in cardiovascular function by monitoring heart rate (HR), and ECG waveforms immediately following telemeter implantation, during exposure, and up to 24 hours post-exposure. This methodology provided continuous monitoring and collection of physiologic data from individual mice to a remote receiver. Sixty-second ECG segments were recorded every 5 minutes during the pre- and post-exposure periods. ECG was recorded continuously during exposure (baseline and hours 1–4); HR was automatically obtained from the waveforms (Dataquest ART Software, version 3.01, Data Sciences International, St. Paul, MN, USA). Non-conducted p-wave arrhythmias, which indicate an temporary atrioventricular block, were counted as previously described (Kurhanewicz et al. 2014 (link)); the mice in our studies do not experience a significant number of atrial or ventricular premature beats or other types of arrhythmias.
Kurhanewicz N., Ledbetter A., Farraj A, & Hazari M. (2018). TRPA1 mediates the cardiac effects of acrolein through parasympathetic dominance but also sympathetic modulation in mice. Toxicology and applied pharmacology, 347, 104-114.
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5

Radiotelemetry for Physiological Monitoring

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Radiotelemetry methodology (Data Sciences International, Inc., St. Paul, MN) was used to track changes in activity, which is unitless and measures animal movement, core body temperature (Tco) and cardiovascular function by monitoring heart rate (HR) and ECG waveforms immediately following telemeter implantation, during the 3-4 weeks of housing regimen, through air sham and WS exposure, and 5-7 days after WS. This methodology provided continuous monitoring and collection of physiologic data from individual mice to a remote receiver. Sixty-second ECG segments were recorded every 5 min during the pre-and post-exposure periods. ECG was recorded continuously during exposure (air sham, baseline and wildfire smoke -see below); HR was automatically obtained from the waveforms (Dataquest ART Software, version 3.01, Data Sciences International, St. Paul, MN, USA).
Harmon M.E., Fiamingo M., Toler S., Lee K., Kim Y., Martin B., Gilmour I., Farraj A.K, & Hazari M.S. (2024). The effect of enriched versus depleted housing on eucalyptus smoke-induced cardiovascular dysfunction in mice. Inhalation toxicology, 36(6).
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6

Radiotelemetry Monitoring of Rat ECG

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Radiotelemetry methodology (Data Sciences International, Inc., St. Paul, MN) enabled constant monitoring of ECG data in unrestrained, un-anesthetized rats from implantation until euthanasia as described in Perez et al. (2013) (link).
Perez C.M., Hazari M.S., Ledbetter A.D., Haykal-Coates N., Carll A.P., Cascio W.E., Winsett D.W., Costa D.L, & Farraj A.K. (2015). Acrolein inhalation alters arterial blood gases and triggers carotid body-mediated cardiovascular responses in hypertensive rats. Inhalation toxicology, 27(1), 54-63.
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7

Radiotelemetry Monitoring of Cardiovascular Activity

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Radiotelemetry methodology (Data Sciences International, Inc., St. Paul, MN) was used to track changes in cardiovascular electrical activity by monitoring heart rate (HR), and ECG waveforms immediately following telemeter implantation, through exposure until 24 h post-exposure. This methodology provided continuous monitoring and collection of physiologic data from individual mice to a remote receiver. Sixty-second ECG segments were recorded every 5 min during the pre- and post-exposure periods. ECG was recorded continuously during exposure (baseline and hours 1–4); HR was automatically obtained from the waveforms (Dataquest ART Software, version 3.01, Data Sciences International, St. Paul, MN, USA). All comparisons of HR, ECG parameters and HRV during exposure were made to the corresponding time of day during pre-/post-exposure; this was always between 8 and 11 am.
Kurhanewicz N., McIntosh-Kastrinsky R., Tong H., Ledbetter A., Walsh L., Farraj A, & Hazari M. (2016). TRPA1 mediates changes in heart rate variability and cardiac mechanical function in mice exposed to acrolein. Toxicology and applied pharmacology, 324, 51-60.
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