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MN1-5207 Rev.13
ULTRASOUND DIAGNOSTIC INSTRUMENT
SSD-α10 Manual Number : MN1-5207 Rev.13
0123
MN1-5207 Rev.13
VS-FlexGrid Pro Copyright(C)1999 Videosoft Corporation Portions of this software are based in part on the work of the Independent JPEG Group.
MN1-5207 Rev.13 Safety alert symbols
Safety alert symbols The four indications [Danger], [Warning], [Caution] and [Note] used on this instrument and in this instruction manual have the following meaning.
Danger Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. A warning message is inserted here.
Warning Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. A warning message is inserted here.
Caution Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. A caution message is inserted here.
Note Indicates a strong request concerning an item that must be observed in order to prevent damage or deterioration of the instrument and also to ensure that it is used efficiently. An explanatory text is inserted here.
Classification of SSD-α10 • Protection against electric shock: Class I medical electrical equipment • Applied parts:Type BF applied parts • Protection against defibrillator emissions: Not compatible with defibrillator-proof applied parts • Protection against harmful ingress of water or particulate matter: Ordinary protection (IPX0) • Level of safety for use in air and flammable anesthetic gas, or in oxygen/nitrous oxide and flammable anesthetic gas: This instrument is not suitable for use in air and flammable anesthetic gas, or in oxygen/nitrous oxide and flammable anesthetic gas. • Operation mode: Continuous operation
1
MN1-5207 Rev.13
CONTENTS This book consists of two separate volumes. These two volumes have the same table of contents and the index respectively.
1. Measurement Functions 1-1. 1-2. 1-3. 1-4. 1-5.
1-6. 1-7.
1-8. 1-9.
1-10.
1-11. 1-12.
Preface... 1-1 Flow of Measurement Operations... 1-2 Switches Used for Measurement... 1-3 1-3-1. The function of the panel switch used by the measurement operation ... 1-3 Basic Operation Procedure for Measurement ... 1-4 1-4-1. Method of starting measurement... 1-4 Explanation of the Measurement Menus ... 1-9 1-5-1. When the measurement Study is changed... 1-9 1-5-2. When the measurement application is changed ... 1-10 Executing the Application Measurement Using the Transfer Function... 1-11 Measurement Mark and Measurement Method ... 1-13 1-7-1. Basic types of marks ... 1-13 1-7-2. Auxiliary line type marks... 1-13 1-7-3. Display mark ... 1-14 1-7-4. The basic operating method for each mark type ... 1-15 Basic Measurement Functional Outline... 1-22 1-8-1. Basic Measurement Functional List... 1-22 Measurement operation procedure... 1-25 1-9-1. B mode ... 1-25 1-9-2. M mode ... 1-44 1-9-3. D mode ... 1-49 1-9-4. B/D mode ... 1-63 1-9-5. B (Flow) mode ... 1-68 1-9-6. VCR Calibration... 1-72 Preset Function... 1-77 1-10-1. Composition of the preset function ... 1-77 1-10-2. Basic operations and function of each button ... 1-78 1-10-3. Initializing Preset ... 1-79 1-10-4. Create Measurement Tools ... 1-80 1-10-5. Application Measurement Tools ... 1-85 1-10-6. Study Assignment ... 1-94 1-10-7. SW Assignment... 1-98 Calculation Formula & Reference ... 1-102 1-11-1. Calculation ... 1-102 Abbreviation... 1-106
2. Cardiac Measurement 2-1. 2-2.
Preface... 2-1 Cardiac Measurement Functional Outline ... 2-2 2-2-1. Cardiac Measurement Functional List ... 2-2 2
MN1-5207 Rev.13
2-3.
2-4.
2-5.
2-6.
2-7.
2-2-2. Items of Special Note... 2-7 2-2-3. Measurement Views for Measuring Cardiac Functions ... 2-8 Measurement operation procedure ... 2-10 2-3-1. B mode... 2-11 2-3-2. M mode... 2-32 2-3-3. D mode... 2-41 2-3-4. Flow mode ... 2-73 Report function ... 2-92 2-4-1. Basic Operation of a Report ... 2-92 2-4-2. Report Block...2-93 2-4-3. Description of Various Data Displayed in a Report ... 2-97 2-4-4. Function that Attaches an Ultrasound Image to a Report... 2-99 2-4-5. Printing Function ... 2-102 2-4-6. Output to a Personal Computer... 2-104 2-4-7. Output to a CSV file ... 2-105 Preset function ... 2-106 2-5-1. Preset Settings(Cardiac Measurement)... 2-106 2-5-2. PRESET list ... 2-107 Calculation Formula & Reference...2-115 2-6-1. Calculation... 2-115 2-6-2. Clinical References... 2-125 Abbreviation ... 2-133
3. Vascular Measurement 3-1. 3-2.
3-3.
3-4.
3-5.
3-6.
Preface ... 3-1 Vascular Measurement Functional Outline ... 3-2 3-2-1. Vascular Measurement Functional List ... 3-2 3-2-2. Items of Special Note... 3-3 Measurement operation procedure ... 3-4 3-3-1. B mode... 3-6 3-3-2. D mode... 3-12 Report function ... 3-24 3-4-1. Basic Operation of a Report ... 3-24 3-4-2. Report Block...3-25 3-4-3. Description of Various Data Displayed in a Report ... 3-29 3-4-4. W. Trace Function ... 3-36 3-4-5. Function that Attaches an Ultrasound Image to a Report... 3-38 3-4-6. Printing Function ... 3-41 3-4-7. Output to a Personal Computer... 3-43 3-4-8. Output to a CSV file ... 3-44 Preset function ... 3-45 3-5-1. Preset Settings... 3-45 3-5-2. PRESET list ... 3-46 Calculation Formula & Reference...3-52 3-6-1. Calculation... 3-52 3-6-2. Anatomy Check List ... 3-53 3
MN1-5207 Rev.13
3-7.
3-6-3. Clinical References ... 3-55 Abbreviation... 3-57
4. Abdominal measurement 4-1. 4-2.
4-3.
4-4.
4-5.
4-6.
4-7.
Preface... 4-1 Abdominal Measurement Functional Outline... 4-2 4-2-1. Abdominal Measurement Functional List... 4-2 4-2-2. Items of Particular Note ... 4-4 Measurement operation procedure... 4-5 4-3-1. B mode ... 4-6 4-3-2. D mode ... 4-14 Report function ... 4-22 4-4-1. Basic Operation of a Report... 4-22 4-4-2. Report Block ... 4-23 4-4-3. Description of Various Data Displayed in a Report... 4-27 4-4-4. Graph... 4-30 4-4-5. W. Trace... 4-31 4-4-6. Function that Attaches an Ultrasound Image to a Report ... 4-33 4-4-7. Printing Function... 4-36 4-4-8. Output to a Personal Computer ... 4-38 4-4-9. Output to a CSV file... 4-39 Preset function... 4-40 4-5-1. Preset Settings ... 4-40 4-5-2. PRESET list ... 4-41 Calculation Formula & Reference ... 4-47 4-6-1. Calculation ... 4-47 4-6-2. Clinical References ... 4-47 Abbreviation... 4-48
5. Obstetrical Measurement 5-1. 5-2.
5-3.
5-4.
Preface... 5-1 Obstetrical Measurement Functional Outline ... 5-2 5-2-1. Obstetrical Measurement Functional List ... 5-2 5-2-2. List of obstetrical measurement name built into system... 5-5 5-2-3. Items of Special Note ... 5-9 Measurement operation procedure... 5-10 5-3-1. B mode ... 5-11 5-3-2. M mode ... 5-25 5-3-3. D mode ... 5-27 5-3-4. Multiple pregnancies... 5-32 5-3-5. Interval Growth Rate... 5-34 Report function ... 5-35 5-4-1. Basic Operation of a Report... 5-35 5-4-2. Report Block ... 5-36 5-4-3. Description of Various Data Displayed in a Report... 5-40
4
MN1-5207 Rev.13
5-5.
5-6.
5-7.
5-4-4. Function that Attaches an Ultrasound Image to a Report... 5-54 5-4-5. Printing Function ... 5-57 5-4-6. Output to a Personal Computer... 5-59 5-4-7. Output to a CSV file ... 5-60 Preset function ... 5-61 5-5-1. Preset Settings... 5-61 5-5-2. PRESET list ... 5-63 Calculation Formula & Reference & Table...5-72 5-6-1. Calculation... 5-72 5-6-2. Anatomy Check List ... 5-78 5-6-3. BPP Scoring... 5-80 5-6-4. References... 5-82 5-6-5. Data in the fetal growth table inside the system ... 5-96 Abbreviation ... 5-137
6. Gynecological Measurement 6-1. 6-2.
6-3.
6-4.
6-5.
6-6.
6-7.
Preface ... 6-1 Gynecological Measurement Functional Outline ... 6-2 6-2-1. Gynecological Measurement Functional List... 6-2 6-2-2. Items of Special Note... 6-3 Measurement operation procedure ... 6-4 6-3-1. B mode... 6-6 6-3-2. D mode... 6-13 Report function ... 6-15 6-4-1. Basic Operation of a Report ... 6-15 6-4-2. Report Block...6-16 6-4-3. Description of Various Data Displayed in a Report ... 6-20 6-4-4. Function that Attaches an Ultrasound Image to a Report... 6-27 6-4-5. Printing Function ... 6-30 6-4-6. Output to a Personal Computer... 6-32 6-4-7. Output to a CSV file ... 6-33 Preset function ... 6-34 6-5-1. Preset Settings... 6-34 6-5-2. PRESET list ... 6-35 Calculation Formula & Reference...6-40 6-6-1. Calculation... 6-40 6-6-2. Anatomy Check List ... 6-40 6-6-3. Clinical References... 6-41 Abbreviation ... 6-43
7. Urological Measurement 7-1. 7-2.
Preface ... 7-1 Urological Measurement Functional Outline ... 7-2 7-2-1. Urological Measurement Functional List ... 7-2 7-2-2. Items of Particular Note... 7-3
5
MN1-5207 Rev.13
7-3.
7-4.
7-5.
7-6.
7-7.
Measurement operation procedure... 7-4 7-3-1. B mode ... 7-6 7-3-2. D mode ... 7-18 Report function ... 7-20 7-4-1. Basic Operation of a Report... 7-20 7-4-2. Report Block ... 7-21 7-4-3. Description of Various Data Displayed in a Report... 7-25 7-4-4. Graph function ... 7-30 7-4-5. Function that Attaches an Ultrasound Image to a Report ... 7-31 7-4-6. Printing Function... 7-34 7-4-7. Output to a Personal Computer ... 7-36 7-4-8. Output to a CSV file... 7-37 Preset function... 7-38 7-5-1. Preset Settings ... 7-38 7-5-2. PRESET list ... 7-39 Calculation Formula & Reference ... 7-43 7-6-1. Calculation ... 7-43 7-6-2. References ... 7-44 Abbreviation... 7-46
8. eTRACKING Measurement 8-1. 8-2.
8-3.
8-4.
Preface... 8-1 eTRACKING Measurement Functional Outline ... 8-1 8-2-1. Outline of Function ... 8-1 8-2-2. Measurement operation procedure... 8-1 Report function ... 8-2 8-3-1. Basic Operation of a Report... 8-2 8-3-2. Report Block ... 8-3 8-3-3. Description of Various Data Displayed in a Report... 8-5 8-3-4. Function that Attaches an Ultrasound Image to a Report ... 8-6 8-3-5. Printing Function... 8-9 8-3-6. Output to a Personal Computer ... 8-11 8-3-7. Output to a CSV file... 8-12 Preset function... 8-13 8-4-1. Preset Settings ... 8-13 8-4-2. PRESET list ... 8-14
6
MN1-5207 Rev.13 4-1.Preface
4. ABDOMINAL MEASUREMENT 4-1.
Preface The description concerning the Abdominal measurement functions is divided into the following six sub-sections. 4-1.
Preface
4-2.
Abdominal Measurement Functional Outline
4-3.
Measurement operation procedure
4-4.
Report Function
4-5.
Preset Function
4-6.
Calculation Formula & Reference
This section describes the procedure for carrying out abdominal measurements, based on the assumption that products are on the factory default. Descriptions of the basic operations of the measurement functions and each measurement method (mark type = Caliper, Trace, etc.) are given in the Section 1. “MEASUREMENT FUNCTIONS”.
This section consists of 48 pages.
4-1
MN1-5207 Rev.13 4-2.Abdominal Measurement Functional Outline
4-2.
Abdominal Measurement Functional Outline
4-2-1. Abdominal Measurement Functional List Abdominal measurements use studies consisting of various combinations of the measurement menu, report display, and so on, depending which part is being examined and the purpose of the examination. [Remark] On the factory default, it contains Basic Study. The abdominal measurement is divided as shown in the figure below for each mode. : Items that are displayed on the factory default.
4-2-1-1.
B mode
Measurement function Gallbladder measurement
Measurement menu
Display items
Gallbladder
GB-L
GB Wall-T
GB Wall-T
Remark
GB-W
Measured at one cross-section.
CBD measurement
CBD
CBD
Liver measurement
Liver (Left Lobe) Liver (Right Lobe)
L1
L2
Pancreas measurement
Pancreas
Head
Body
P-Duct
P-Duct
Renal measurement
Renal Volume (Right, Left)
Vol.
Rnl-L
Rnl-W
Spleen measurement Spleen
a
b
SI
Space-occupying lesion measurement
SOL1 SOL2
d1
d2
d3
Blood vessel diameter measurement
Aorta Diam
Aorta Diam
PV Diam
PV Diam
% stenosis measurement
% STENO Diam % STENO Area
Measured at one cross-section. Measurement of left lobe and right lobe. Tail
Measured at multiple cross-sections. Measured at one cross-section. Rnl-AP
Measured at two cross-sections.
SI: Spleen Index(axb)
Area
Measured at two cross-sections.
Volume
Vessel
Measured at one cross-section.
Resid
%STENO
4-2
Diagnosis for the rate of stenosis.
MN1-5207 Rev.13 4-2.Abdominal Measurement Functional Outline
4-2-1-2.
D mode
Measurement function
Measurement menu
Artery measurement
A-Ao, CA, CHA, SA, SMA, IMA, CIA, HA, Prandial SMA, Artery1, Artery2, Artery3 *Artery1- 3: It is possible to freely define and use a name according to the particular purpose and application.
Renal Artery measurement
Renal-A
Display items
Remark
PI
RI
S/D
PSV
EDV
MnV
ACC
AccT
PI
RI,
S/D
PSV
EDV
MnV
ACC
AccT
FlowT
Diagnosis for the rate of stenosis CIA: Consists of Right/ Left Prandial SMA: Consists of Pre/Pst Diagnosis of degree of stenosis Consists of Right/Left
AccT/FT
Portal vein measurement
Main PV Rt.PV Lt.PV
pV
For portal vein blood flow.
Shunt blood vessel measurement
Pre Shunt PV Prox Shunt Mid Shunt Distal Shunt
pV
For shunt blood flow measurement.
4-2-1-3.
B mode, D mode
Measurement function Flow quantity measurement
Measurement menu F.Volume (Abdom)(MnV)
F.Volume (Abdom)(VTI)
Display items
Remark
MnV
pV
VTI
AccT
ACC
FV
CSD
CSA
MnV
pV
VTI
AccT
ACC
FV(beat)
FV(min)
CSD
CSA
HR
4-3
For steady state blood flow. For arterial blood flow.
MN1-5207 Rev.13 4-2.Abdominal Measurement Functional Outline
4-2-2. Items of Particular Note For blood flow velocity measurement: When recording an arterial flow Doppler waveform (pulse method), if the Doppler incident angle exceeds 60° the measurement error becomes large. The measured values of the blood flow values obtained using this instrument are the absolute values displayed on the observation monitor. They are controlled as positive and negative values for the purpose of calculating the arithmetic index. If the display of each measured value in a report is set to "Average" in a preset, the positive and negative values are added together and displayed as a mean value. Consequently, when performing multiple measurements of blood flow on the blood flow waveform drawn using the color Doppler method as a guide, use identical recording conditions (forward and reverse flow directions) for all of the blood flow waveforms in order to correctly display each of the arithmetic values arranged in the report.
4-4
MN1-5207 Rev.13 4-3.Measurement operation procedure
4-3.
Measurement operation procedure Abdominal measurement has the following study. Basic Study When multiple Studies are set by the preset function, it can be possible to switch the Study & Application by the touch panel.
<Displaying marks of registered reports > When the registration of the report is made after a measurement is made for each item, the number of registration times is displayed on the touch panel.
The number of registration times [Remark] The display examples of the measurement results, in this chapter, are displayed with a vertical display layout.
4-5
MN1-5207 Rev.13 4-3.Measurement operation procedure
4-3-1. B mode 4-3-1-1.
Gallbladder measurement
This is the measurement of the length and width of the vertical cross-section of the gallbladder.
<Operation method> (1)
Record a slice image of the gall bladder in the B mode.
(2)
Select the Gallbladder on the touch panel. → The + mark is displayed, so measure the Length.
(3)
Press the + switch. →
(4)
Length
Press the →
Width
Measure the Width.
GB Wall‑T
switch.
Measurement is finalized.
<Example of Gallbladder results display> Gallbladder GB-L: . cm GB-W: . cm
4-3-1-2.
← Length of the gallbladder ← Width of the gallbladder
GB Wall-T measurement
This is the measurement of the thickness of the gallbladder wall.
<Operation method> (1)
Record a slice image of the gallbladder in the B mode.
(2)
Select the GB Wall-T on the touch panel. →
(3)
The + mark is displayed, so measure the GB wall thickness.
Press the →
switch.
Measurement is finalized.
<Example of GB Wall-T results display> GB-Wall-T: . cm
← Thickness of gallbladder wall
4-6
MN1-5207 Rev.13 4-3.Measurement operation procedure
4-3-1-3.
CBD measurement
This is the measurement of the diameter of the common bile duct.
<Operation method> (1)
Record a slice image of the common bile duct in the B mode.
(2)
Select the CBD on the touch panel. → A + mark appears, so measure the diameter of the common bile duct.
(3)
Press the →
switch.
Measurement is finalized. CBD
<Example of CBD results display> CBD: .
4-3-1-4.
cm
← Common Bile Duct ← Diameter of the common bile duct
Liver measurement
This is the measurement of the left and right lobes of the liver. The method of measurement for both the left and right lobes is the same.
<Operation method> (1)
Record a slice image of the right (or left) lobe in the B mode.
(2)
Select Right or Left of Liver on the touch panel. →
(3)
Length1
The + mark is displayed, so measure the Length1.
Press the + switch. →
Measure the Length2. Left Lobe
(4)
Length1
Press the →
Right Lobe
switch.
Measurement is finalized.
<Example of Liver results display> Liver (Right) L1: . cm L2: . cm
Liver (Left) L1: . cm L2: . cm
4-7
← Length 1 of the right or left lobe of the liver ← Length 2 of the right or left lobe of the liver
MN1-5207 Rev.13 4-3.Measurement operation procedure
4-3-1-5.
Pancreas measurement
This is the measurement of the head, body and tail of the pancreas from its cross-section.
<Operation method> (1)
Record a slice image showing the head of the pancreas. P‑Duct
(2)
Select the Pancreas on the touch panel, and then select Head. →
(3)
Record a slice image showing the body of the pancreas, and then press the + switch. →
(4)
Measure the Body.
Record a slice image showing the tail of the pancreas, and then press the + switch. →
(5)
The + mark is displayed, so measure the Head.
Measure the Tail.
Press the →
switch.
Measurement is finalized.
<Example of Pancreas results display> Pancreas Head: . Body: . Tail: .
4-3-1-6.
cm cm cm
← Diameter of head of pancreas ← Diameter of body of pancreas ← Diameter of tail of pancreas
P-Duct measurement
This is the measurement of the diameter of the pancreatic duct.
<Operation method> (1)
Record a slice image of the pancreas showing the pancreatic duct in the B mode.
(2)
Select the P-Duct on the touch panel. →
(3)
The + mark is displayed, so measure the pancreatic duct.
Press the →
switch.
Measurement is finalized.
<Example of P-Duct results display> P-Duct: .
cm
← Diameter of pancreatic duct
4-8
Tail Body Head
MN1-5207 Rev.13 4-3.Measurement operation procedure
4-3-1-7.
Renal Volume measurement
Approximate each of the left and right renal volume to an ellipsoid, measure the major and minor axes of the transverse image (Width, AP) and the length of the major axis of the longitudinal image (Length), and calculate the volume of each renal.
A-P Length
Width
Longitudinal Image
Transverse Image
[Remark] Measure these three axes in such a way that they intersect each other. The switching between the Right and Left can be made with the touch panel. The operation procedure for both kinds of measurement is the same.
<Operation method> The case of the Right of the Renal Volume is explained. (1)
Display the longitudinal and transverse images of the right kidney in the 2B mode.
(2)
Select the Right of the Renal Volume on the touch panel. →
(3)
Press the + switch. →
(4)
Measure the Width using the transverse image.
Press the + switch. →
(5)
The + mark is displayed, so measure the Length using the longitudinal image.
Measure the A-P using the transverse image. Volume (Rt.Renal Vol.) is computed.
Press the →
switch.
Measurement is finalized.
<Example of Renal Volume results display> Right Renal Volume Volume of Renal Lengthof Renal Width of Renal Anterior-posterior of Renal
Rt.Renal Vol Vol. : . cc Rnl-L : . cm Rnl-W : . cm Rnl-AP: . cm
4-9
MN1-5207 Rev.13 4-3.Measurement operation procedure
4-3-1-8.
Spleen measurement
This measurement is for obtaining the spleen index (SI = axb) from the major diameter (a) and the thickness (b) of the spleen.
<Operation method> (1)
Record a slice image of the spleen in the B mode.
(2)
Select the Spleen on the touch panel. → A + mark appears, so measure the major diameter a.
(3)
Press the + switch. → Measure the thickness b.
(4)
Press the switch. → Measurement is finalized.
b a
<Example of Spleen results display> Spleen a : . b : . SI: .
4-3-1-9.
cm cm cm2
← Major diameter of spleen ← Thickness of spleen ← Spleen Index (=axb)
SOL (Space Occupying Lesions) measurement
This is the measurement of the length of the three axes of a space-occupying lesion, such as a tumor, for calculating the volume of the lesion using an elliptical approximation. The same operation is used for both SOL1 and SOL2.
<Operation method> (1)
Record a slice image showing the SOL in the B mode.
(2)
Select the SOL1 on the touch panel. → A + mark appears, so measure the first axis.
(3)
Press the + switch. → Measure the second axis.
(4)
Press the + switch. → Measure the third axis.
(5)
Press the switch. → Measurement is finalized.
Diam1
Diam2
<Example of SOL results display> SOL1 Vol.: Area: d1 : d2 : d3 :
. . . . .
cm3 ← Volume cm2 ← Area cm ← Diameter of first axis cm ← Diameter of second axis cm ← Diameter of third axis
4-10
Diam3
MN1-5207 Rev.13 4-3.Measurement operation procedure
4-3-1-10. Blood vessel diameter measurement This is the measurement of the diameter of the aorta and the portal vein. The method of measurement used for both the aorta and the portal vein is the same.
<Operation method> (1)
Record a slice image of the aorta (or the portal vein) in the B mode.
(2)
Select the Aorta Diam or PV Diam on the touch panel. →
(3)
A + mark appears, so measure the diameter of the aorta (or the portal vein).
Press the →
switch.
Measurement is finalized.
<Example of Aorta Diam results display> Aorta Diam: .
cm
← Diameter of aorta
<Example of PV Diam results display> PV Diam: .
cm
4-11
← Diameter of portal vein
MN1-5207 Rev.13 4-3.Measurement operation procedure
4-3-1-11. Rate of % Stenosis measurement One of the following two methods can be used to evaluate the % stenosis. 1)
Evaluation by calculation from the diameter (% STENO Diam)
2)
Evaluation by calculation from the cross-sectional area (% STENO Area)
1) % STENO Diameter measurement Measure the % stenosis of a blood vessel by measuring the blood vessel lumen diameter using a transverse image
<Operation method> The following description is based on the case of % STENO Diam. [Remark] You can perform this measurement using the Study for the arterial system. (1)
Display the transverse image of the short axis that intersects the location of the stenosis at right angles to it.
(2)
Select the % STENO Diam on the touch panel. →
(3)
Press the + switch. →
(4)
Measure the intrinsic internal diameter a of the blood vessel (Vessel). Using the same operation as (2), measure the residual lumen diameter b (Residual) of the stenosis.
Press the →
switch.
Measurement is finalized.
% STENO= (a - b) / a × 100 (a > b) a: Vessel lumen b: Residual
<Example of % STENO Diameter results display> STENO-Diam Vessl: . Resid: . %STENO: .
mm mm %
The diameter of the lumen of the original blood vessel (Vessel) The diameter of the lumen of the stenosis part of the blood vessel (Residual) Rate of the stenosis
4-12