Term
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Definition
| SPTA must be leass than what? |
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Term
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Definition
| Most equipment us variable acoustic outputs between what? |
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Term
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Definition
| TI of 0.7 max exposure time is what? |
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Term
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Definition
| TI of 1.0 max exposure time is what? |
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Term
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Definition
| TI of 1.5 max exposure time is what? |
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Term
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Definition
| TI of 2.0 max exposure time is what? |
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Term
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Definition
| TI 2.5 max exposure time is what? |
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Term
| qualitative and quantitative |
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Definition
| Doppler measurements of blood flow are two-fold: |
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Term
|
Definition
| information of waveform shape and characteristics |
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Term
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Definition
| velocity and amount of flow |
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Term
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Definition
flow waveform shape
provides info on circulation and changes in circulation |
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
does not provide quantitative flow
information |
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Definition
| disadvantage of qualitative |
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Term
- does not require beam/vessel angle correction
- reproducible across different ultrasound systems
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Definition
| Advantages to qualitative |
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Term
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Definition
time from beginning of systole to peak of systole
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Term
shorter AT
(acceleration time) |
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Definition
| high resistant flow has what kind of AT? |
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Term
Longer AT
(acceleration time) |
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Definition
| low resistant flow has what kind of AT? |
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Term
|
Definition
| time from peak systole to end diastole |
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Term
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Definition
| fetuses with asymmetric IUGR vasular resistance does what in the aorta and umbilical artery |
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Term
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Definition
| fetuses with asymmetric IUGR vascular resistance does what in the fetal middle cerebral artery? |
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Term
| increased S/D ratio or PI |
|
Definition
| Increased vascular resistance is reflected by what? |
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Term
|
Definition
| branch off internal iliac artery close to the bifurcation of the common iliac artery |
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Term
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Definition
| S/D ratio above what in the uterine artery suggest increased vascular resistance meaning that there is decreased blood supply to the uterus |
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Term
|
Definition
| abnormal S/D ratio in the umbilical artery is what? |
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Term
|
Definition
| Absent or reversed flow in the umbilical artery after how many weeks is associated with high rates of morbidity and mortality? |
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Term
| little to no end diastolic flow |
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Definition
| Normal middle cerebral artery waveform from 22 to 28 weeks show shows how much end diastolic flow |
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Term
|
Definition
| after how many weeks is there a resistance in the middle cerebral artery? |
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Term
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Definition
| there is a progressive reduction in resistance in the MCA |
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Term
-
umbilical artery S/D ratio
-
maternal uterine artery S/D ratio
-
Fetal middle artery S/D ratio
|
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Definition
| best method of solving if the fetus has IUGR or just SGA is combine these parameters: |
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Term
| for poor perinatal outcome |
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Definition
| SGA fetus with an increased S/D ratio is at higher ridk for what than one with normal S/D ratioi in umbilical artery? |
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Term
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Definition
| EFW of > or = 4000g or above the 90th percentile for estimated gestational age |
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Term
|
Definition
| increased levels of glucose result in this which promotes accelerated somatic growth, and a characteristic pattern of organomegaly |
|
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Term
- beckwith- wiedemann syndrome
- Marshall-smith syndrome
- sotos' syndrome
- weaver's syndrome
|
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Definition
| malformation syndromes in which fetal overgrowth, with or without organomegaly: |
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Term
head and shoulder injuries and
cord compression |
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Definition
| macrosomic fetus has an increased incidence of morbidity and mortality as a result of what? |
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Term
- result of genetic factors
- prolonged pregnancy
- multiparity
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Definition
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Term
|
Definition
| fetuses that are large but with especially large shoulders |
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Term
- genetic constitution (family traits)
- pathologic process (hydrocephalus)
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Definition
| fetuses with normal trunk but large head |
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Term
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Definition
| able to predict macrosomia when a change in AC was greater than or equal to what measurement per week between 32nd and 39th weeks of pregnancy |
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Term
|
Definition
subtract BPD from chest diameter
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Term
|
Definition
| infants weighing >4000g has a macrosomic index of what? |
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Term
- polyhydramnios (diabetic mothers)
- significantly larger placentas (>5cm)
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Definition
| other methods of determing macrosomic fetuses: |
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Term
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Definition
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Definition
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