Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
lack of funding
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Patients with sickle cell anemia (SCA) are at an increased risk for damage to brain tissue due to their disease. The investigators are interested in how blood flow and cerebral inflammation are different in SCA patients and how that affects brain tissue- the investigators will use a relatively new set of dynamic MRI techniques to evaluate these parameters. The investigators will image participants with both SCA and matched controls with non-invasive MRI.
Patients with sickle cell anemia (SCA) are at increased risk for episodes of stroke, both overt clinically evident and subclinical lesions only seen on imaging, which have associated morbidity and mortality. In addition, SCA patients demonstrate relatively poorer cognitive performance compared to their peers without SCA that is believed to be related to the episodes of stroke, but may be present even in their absence.
This study is designed to explore potential risk factors in patients with SCA that will identify predictors of cerebral damage that may also be modifiable. Elevated blood flow in cerebral arteries and increased inflammation are believed to be related to both ischemic lesions and cognitive findings but have not yet been clearly proven. We aim to use new MRI techniques which target cerebral blood flow and inflammation to identify differences in SCA patients and peers and follow this with an initial exploration of the association between these pathologic findings and cognitive deficits.
The investigator does not assign specific interventions to the subjects of the study.
Not provided
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| SCA Patients | Asymptomatic sickle cell anemia patients will undergo imaging/neurocognitive testing and be compared to controls | ||
| Control Patients | Asymptomatic sickle cell anemia patients will undergo imaging/neurocognitive testing and be compared to controls |
Not provided
| Measure | Description | Time Frame |
|---|---|---|
| Cerebral blood flow (CBF) measured by continuous arterial spin labeling (CASL) MRI | CBF will be measured by continuous arterial spin labeling (CASL) MRI | Day 1 |
| Measure | Description | Time Frame |
|---|---|---|
| Cogstate Testing | Exploration of the association between CBF values and cognitive performance deficits | Day 1 |
| Mean diffusivity/Fractional anisotropy (MD/FA) evaluated by diffusion tensor imaging (DTI) MRI measurements |
Not provided
Inclusion Criteria:
Exclusion Criteria:
Not provided
Not provided
18-55 year old male and female patients with sickle cell anemia who are asymptomatic of previous CNS disease
Not provided
| Name | Affiliation | Role |
|---|---|---|
| Henny H Billett, MD | Montefiore Medical Center | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Albert Einstein College of Medicine | The Bronx | New York | 10461 | United States | ||
| Montefiore Medical Center (Einstein) |
Data will be made available after manuscript publication to those that request it
Time frame of study has ended. Only preliminary data will be available - no end date
Other investigators
Not provided
Not provided
| ID | Term |
|---|---|
| D000755 | Anemia, Sickle Cell |
| D007249 | Inflammation |
| ID | Term |
|---|---|
| D000745 | Anemia, Hemolytic, Congenital |
| D000743 | Anemia, Hemolytic |
| D000740 | Anemia |
| D006402 | Hematologic Diseases |
Not provided
Not provided
Not provided
Not provided
Not provided
Blood samples for evaluation of inflammatory markers
MD/FA will be evaluated by diffusion tensor imaging (DTI) MRI measurements
| Day 1 |
| The Bronx |
| New York |
| 10461 |
| United States |
| D006425 |
| Hemic and Lymphatic Diseases |
| D006453 | Hemoglobinopathies |
| D030342 | Genetic Diseases, Inborn |
| D009358 | Congenital, Hereditary, and Neonatal Diseases and Abnormalities |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |