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Low recruitment rate
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Doppler signals can be recorded from the lung parenchyma by means of a pulsed Doppler ultrasound system incorporating a special signal processing package; i.e. the transthoracic parametric Doppler (TPD) (EchoSense Ltd., Haifa, Israel). Systemic sclerosis patients often develop pulmonary vascular disease leading to pulmonary hypertension. The TPD system may provide important insight into pulmonary blood vessels characteristics by the LDS signals that are related to pulmonary hypertension.
The TPD performance in detecting PAH in SSc patients will be assessed in the study.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Doppler ultrasound | Experimental | Recording Doppler signals from the lungs |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Doppler ultrasound | Radiation | Detecting Doppler signals from the lungs on the right chest wall |
|
| Measure | Description | Time Frame |
|---|---|---|
| Number of SSc patients correctly identified with pulmonary hypertension severity in each of the 4 defined groups by RHC. | Analyze Doppler data of 4 SSc groups(according to pulmonary hypertension sevirity ) resulting in typical features. The features will be implemented in a pre-determined diagnostic algorithm that will determine the overall statistical analysis success of the method in comparison to RHC data. | 12 month |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Yair Molad | Reumatology department, Rabin medical center | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Reumatology department, Rabin medical center | Petah Tikva | 49100 | Israel |
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| ID | Term |
|---|---|
| D012595 | Scleroderma, Systemic |
| D006976 | Hypertension, Pulmonary |
| ID | Term |
|---|---|
| D003240 | Connective Tissue Diseases |
| D017437 | Skin and Connective Tissue Diseases |
| D012871 | Skin Diseases |
| D008171 | Lung Diseases |
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| D012140 | Respiratory Tract Diseases |
| D006973 | Hypertension |
| D014652 | Vascular Diseases |
| D002318 | Cardiovascular Diseases |