Transcranial Doppler
In the year 1982, by making use of simple pulsed ultrasound techniques,
Sweden Doctor Aaslid invented transcranial doppler to diagnose
cerebrovascular disease.and this doppler was quickly used and played an
important role in clinical treatment.later on,it gained rising development all
over the world and gradually became a cannot-be-placed equipment to
diagnose cerebrovascular disease in neurological department.At the
beginning of 21 century,CDS utilized American Medisonics "advanced
multi-deep digital pluse technique and A/M super display location
technique" and put transcranial doppler to the highest comprehensive
diagnosis state,formed CDS series advanced diagnosis equipments(fual
function TCCD-A type).therfore, it can make quantitive、accurate、scientific
diagnosis and analysis for various cerebrovascular lesion 、thrombus
identification、tracking analysis、cerebral blood flow evaluation which can
not be accurately diagnosed.Up to now the CDS-9000 series multi-channel、
multi-depth、multi-door deep brand apparatus(chinese and english edition) is
the wisdom crystallization of multi-door deep digital pulse highest technique
and linical reasercch in the world,and is also the first choice for hospitals to
upgrade、renovate equipment and pursue grade.
Clinical Application
(1)Clinical diagnosis and research
The diagnosis of cerebral arteriosclerosis、cerebral arteries insufficiency、
cerebral angiostenosis、cerebrovascular occlusion、cerebral vasospasm、
intracal arteriovenous malformations and infraclavicula blood-robber
syndrome;the research of intracranial hypertension 、subarachnoid
intracerebral hemorrhage、migraine、cerebral ischemic diseases; cerebral
thrombus detection and tracking etc.
(2)The overall testing、monitoring、research of the function status of Willis
ring and its collateral circulation
(3)pharmacology、physiology basic research, cerebrovascular prophylaxis、
apoplexy prediction
(4)Special clinical research and aggregate analysis:thrombotic quantitative
tracking analysis,CO reaction experiment and evoked blood flow analysis,
cerebral blood flow measurement, cerebral blood flow comprehensive
evaluation etc.
System Function and Quality Assurance
 Advanced ultrasound techniques:multi-channel synchronized
detection:among various frequency probes you can select two to four
to do synchronized and same-screen blood flow detection;
multi-depth synchronized detection:you can sue the same probe to do
synchronized detection for different depth blood to determine the
vascular lesion and thrombotic validity.multi-door deep synchronized
detection:full combination of multi-chanel and multi-depth
techniques,blood display on the same screen in multiple
windows,blood overall and comprehensive analysis.A ultrasound
digital positioning technique:display the echo-signal of different
vessel wall to determine vessel position and size.
 Hardware identification technique:hardware technique of thrombus
extraction and identification:improve door limitation and frequency
of hardware,there''''s no lost and distortion when high intensity signal
passes; spectrogram sound synchronized playback technique:actual
playback of original blood flow data by using sound card storage
technique;automatic blood vessel search and identification
technique:quickly search and identify blood flow signal on the basis
of A ultrasound technique and blood flow characteristics;high
precision and high sensitivity physical enhancement
technique:accurate and sensitive detection of different weak lateral
branch blood vessel signal.
 Software analysis function:
Normal software operating function
Clinical software analysis function:
The emerging menu function of system setting 、frequency spectrum
detection、report printing、
file management etc.
A. Longtime monitoring trend of blood flow and alarm
B. Normal picture library and normal parameter double-side comparison
C. The statistic analysis and electronic query of case database
D. Automatic detection and analysis of thrombus factor
E. A ultrasound displays impulse curve and diameter measurement of blood
vessel wall(optional)
F.(instant)cerebral blood flow measurement(high grade optional)
G.Immediate load of internet tele consultation(optional)
H.Continual software upgrading ability