Method for diagnosing malignancy in pelvic tumors
First Claim
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1. A method for diagnosing a tumor, the method comprising the steps of:
- (a) measuring a blood-flow waveform associated with the tumor, said waveform depicting pulsations of blood-flow associated with the tumor, said pulsations having systolic and diastolic components;
(b) fitting a post-systolic portion of said blood-flow waveform to a parameterized monotonic mathematical function; and
(c) inferring a likelihood of malignancy of said tumor from a parameter of said monotonic mathematical function.
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Abstract
A method for diagnosing malignancy in a tumor. A waveform representative of pulsatile blood flow in the tumor is measured, and the post-systolic portion of the wave form is fit with a mathematical function such as an exponential decay curve. A decay constant greater than about 48 pixels is diagnostic of malignancy.
34 Citations
16 Claims
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1. A method for diagnosing a tumor, the method comprising the steps of:
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(a) measuring a blood-flow waveform associated with the tumor, said waveform depicting pulsations of blood-flow associated with the tumor, said pulsations having systolic and diastolic components; (b) fitting a post-systolic portion of said blood-flow waveform to a parameterized monotonic mathematical function; and (c) inferring a likelihood of malignancy of said tumor from a parameter of said monotonic mathematical function. - View Dependent Claims (2, 3, 4, 5)
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6. A method for diagnosing a pelvic tumor, the method comprising the steps of:
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(a) measuring a blood-flow waveform associated with the pelvic tumor, said waveform dipicting pulsations of blood-flow associated with the pelvic tumor, said pulsations having systolic and diastolic components; (b) fitting a post-systolic portion of said blood-flow waveform to a parameterized monotonic mathematical function; and (c) inferring a likelihood of malignancy of said pelvic tumor from a parameter of said monotonic mathematical function. - View Dependent Claims (7, 8, 9, 10)
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11. A system for diagnosing a tumor, the system comprising:
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(a) a mechanism for obtaining a pulsatile waveform for blood-flow associated with the tumor, said waveform having systolic and diastolic components to each pulsation, (b) a mechanism for fitting a post-systolic portion of said blood-flow waveform to a parameterized monotonic mathematical function; and (c) a mechanism for determining a parameter of said parameterized monotonic mathematical function, said parameter describing a likelihood of malignancy of said tumor. - View Dependent Claims (12, 13)
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14. A system for diagnosing a pelvic tumor, comprising:
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(a) a mechanism for obtaining a pulsatile waveform for blood-flow associated with the pelvic tumor, said waveform having systolic and diastolic components to each pulsation; (b) a mechanism for fitting a post-systolic portion of said blood-flow waveform to a parameterized monotonic mathematical function; and (c) a mechanism for determining a parameter of said parameterized monotonic mathematical function, said parameter describing a likelihood of malignancy of said pelvic tumor. - View Dependent Claims (15, 16)
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Specification