Cardiac Hemodynamics

Organ and Tissue Bath Studies

Isolated Perfused Heart

Epithelial

LabScribe Software

Cardiac Hemodynamics Research

Hemodynamics is the study of the dynamic behavior of blood as it flows around the heart, the lungs and the body. Pressure is generated in various parts of the heart as a result of this movement. These pressures can be measured and monitored through catheters whose tips are placed in the atria, pulmonary artery, or systemic arteries.

Hemodynamic studies require the measurement of pressure, flow, and electrical signals from the heart, and electrical signals from nerves, such as the vagus. iWorx has everything you need for research studies in hemodynamics, and associated studies in cardiac electrophysiology and cardiopulmonary function.

Unique Labscribe2 Software Saves Hours in Data Extraction Time
Using LabScribe's unique Regions of Interest and AutoMarking capabilities, you can easily record and extract data of interest, then export to your choice of analytical programs. Additionally, powerful built-in analyses; let you script custom routines using a choice of any scripting languages (including Matlab, Python, Dadisp Labview and even C++); or easily export data to Excel or other analytical programs. LabScribe's versatility saves hours in data extraction time.

QRS Complex of ECG






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Record and AutoMark the ECG, sending the calculations to the journal from where they can be exported easily to Excel or other analytical program for further analysis.

Blood Pressure Analysis, including LDEVP







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Record and AutoMark LDEVP, systolic and diastolic from a blood pressure curve, sending the calculations to the journal from where they can be exported easily to Excel or other analytical program for further analysis.

iWorx Features for Cardiovascular and Hemodynamic Recording








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Online Analysis
LabScribe2 software can calculate rate, systolic, diastolic and mean pressures, as well as dp/dt and integral from any raw data input in real time. All of the same functions can be applied offline, too.

Offline Analysis
All of the online functions can be applied offline. In addition, a series of functions applied from the Analysis window can be used to reduce raw data. Functions operate on a selection of data and return a single value, which can be written to the LabScribe2 Journal. Currently supported functions include: T1,Y1,T2,Y2,T2-T1 Y2-Y1, Maximum, Minimum, Maximum-Minimum, Mean, Mark, Count, Units, Standard Deviation, RMS, Maximum dV/dt, Minimum dV/dt, Mean dV/dt, dV1/dt, dV2/dt, Area, Integral, Absolute Value of Integral. Analysis window functions used in conjunction with the LabScribe2 Find command, can automatically analyze the entire record.

A unique Calculations Function allows the user to identify and make measurements from characteristic points of an ECG or blood pressure waveform.

Input/Output
The built-in stimulator allows delivery of a single, continuous, or train of pulses. Pulse durations, frequencies and amplitudes can be changed as the protocol is being delivered. The software also offers full control of digital I/O lines that can be used to count events, or control devices in the lab environment.

Display
The LabScribe2 software allows you to easily convert voltage to real units, such as mmHg or percent for pressure or flow measurements, respectively. The display allows you to toggle between a preferred Y-axis scaling (between 40 and 140 mmHg, for example) and the best view as determined by the AutoScale feature. Alternately, you can zoom-in or zoom-out by factors of two with a single mouse click. In a similar fashion, X-axis scaling can be expanded or compressed by factors of two with a single click.

Real Time Annotations
While recording, you can mark your data with text messages. These marks are searchable and appear in the field of data to which they apply. Marks are time locked to the record and can be used to Go To any marked region of the data.

Data Reduction
Data can be analyzed and reduced in the Analysis window. Here, selections of data can be averaged and written to a report. For example, the software can be instructed to break the record up into five-minute pieces, determine the average systolic or average heart rate for the data in each segment, and write those values to a report.

XY Window
Any two channels can be displayed in XY format, online or offline. LabScribe2 software supports area measurements and segment slopes from such plots. And, of course, you can save the plots as pictures or text.







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Export
All recorded data can be exported to either a text file or a picture (.png) making reports or posters much easier to create. Of course, you can always print your data from any window at any scale.