and the total power as
Poo = Xlim lim ny.
>oo Y)oo
For each of the signals in Problem 2.1, determine the values of E00 and P00.
Systems and Their Properties
2,4 Two LSI systems are connected in cascade. Show that
LSI system and prove equations (2.47) and

and the total power as
Poo = Xlim lim ny.
>oo Y)oo
For each of the signals in Problem 2.1, determine the values of E00 and P00.
Systems and Their Properties
2,4 Two LSI systems are connected in cascade. Show that
LSI system and prove equations (2.47) and

Assignment 2
Reading: Prince and Links: Chapters 5 and Chapter 6 (CT); and Chapters 12 (MRI)
Suggested reading: Andrew Webb, Introduction to Medical Imaging: Chapter 2 (CT)
and Chapter 4 (MRI)
Homework2: From problem sets in the textbook by Prince and Lin

ectlon Radiography
5.2/ (a) What determines the highest energy of x-ray photons emitted cfw_mm
x-ray tube? What determines the energy specrrum of the X-ray photons?
(b) In radiographic imaging, why are low-energy photons undesired; h
measures can be taken

Assignment 2
Reading: Prince and Links: Chapters 5 and Chapter 6 (X-rays and CT);
Suggested reading: Andrew Webb, Introduction to Medical Imaging: Chapter 2 (CT)
Homework2: From problem sets in the textbook by Prince and Links (1st edition). Problems
are

Assignment 2
Reading: Prince and Links: Chapters 5 and Chapter 6 (CT);
Suggested reading: Andrew Webb, Introduction to Medical Imaging: Chapter 2 (CT)
Homework2: From problem sets in the textbook by Prince and Links. Problems are posted
on e-learning.tamu

and (10.28), respectively.
(b) Derive the expressions for intensity transmittivity and reectivity ,
in Equations (10.29) and (10.30), respectively. ~ ~
10.9 An acoustic dipole can be modeled by two point sources (w . .
close together but vibrating exactl

Assignment 5
Required reading: Prince and Links: Chapters 13 MRI
Suggested reading: Andrew Webb, Introduction to Medical Imaging: Chapter 4 MRI
1. Assume a pig head is imaged inside an MRI scanner. The head has a size of 20cm x 20cm in the
image plane, an

Assignment 2
Reading: Prince and Links: Chapters 5 and Chapter 6 (CT); and Chapters 12 (MRI)
Suggested reading: Andrew Webb, Introduction to Medical Imaging: Chapter 2 (CT)
and Chapter 4 (MRI)
Homework2: From problem sets in the textbook by Prince and Lin

Assignment 4
Required reading: Prince and Links: Chapters 12-13 on MRI
Suggested reading: Andrew Webb, Introduction to Medical Imaging: Chapter 4 MRI
Due: before class on Tuesday October 8. No late HW4 will be accepted. Solution will be
posted by right af

1. The origin is at the center of the FOV. The highest frequency is at x = 10cm, which is
The sampling frequency should be at least twice the highest frequency to avoid aliasing,
So the sampling interval , the maximal sampling interval is .
2. The demodul

ELEN 410-JI
Introduction to Medial Imaging
(All exam schedules and policies are tentative until confirmed at the
beginning of the semester)
Instructor: Jim Ji, WERC 309E, (979) 458-1468 E-mail: jimji@tamu.edu
Teaching Assistant: TBD
Office Hours:
TA: 4-5P

Assignment 1
Required reading: Prince and Links: Chapters 1, 2, and 4
Suggested reading: Guy and Ffytche, Chapter2: sections 2.1-2.4
To access the online e-book, you must be on campus network, either physically or
through a VPN connection. You can setup V

Assignment 3
Due: before class on Tuesday, October 1
Required reading: Prince and Links: Chapters 12
Suggested reading: Andrew Webb, Introduction to Medical Imaging: Chapter 4 MRI
1. Assume a pig head is imaged inside an MRI scanner. The head has a size o

Ultrasound
architecture-transducer and monitor
different ultrasound mode slide 124
A mode- plots the amplitude time echo signal (depth and range information) high
frequency ultrasound for high axial resolution
B Mode - brightness mode standard imaging

ECEN 410 Medical
Imaging
Final Research Project on LUCAS
The Need
Over 40 million people in the world have
HIV/AIDS
Inefficient diagnosis:
Lack of equipment
Takes long time
The Solution
LUCAS
(LenslessUltra-wide field-of-viewCell monitoringArray
platfo

Assignment 3
Required reading (the next two weeks): Prince and Links:
Chapters 10 and 11
Suggested reading: Andrew Webb, Introduction to Medical
Imaging: Chp 3 Ultrasound Imaging
All problems are from the textbook by Prince and Links 1st
edition. The sc

Assignment 3
Required reading (the next two weeks): Prince and Links:
Chapters 10 and 11
Suggested reading: Andrew Webb, Introduction to Medical
Imaging: Chp 3 Ultrasound Imaging
Homework 5: Due: before class, Tuesday, October 29
All problems are from t

1. The origin is at the center of the FOV. The highest frequency is at x = 10cm, which is
f max ( B0 Gx x ) 42.58MHz / T * (1.5T 80mT / m *10cm) 64.21MHz
The sampling frequency should be at least twice the highest frequency to avoid aliasing,
f s 2 f max

Assignment 3
Required reading (the next two weeks): Prince and Links:
Chapters 10 and 11
Suggested reading: Andrew Webb, Introduction to Medical
Imaging: Chp 3 Ultrasound Imaging
All problems are from the textbook by Prince and Links. The
scanned homewo

Assignment 1
Required reading: Prince and Links: Chapters 1, 2, and 4
Suggested reading: Guy and Ffytche, Chapter2: sections 2.1-2.4
To access the online e-book, you must be on campus network, either physically or
through a VPN connection. You can setup V

% Example 3
% Plot problem 1.3a using Ts=pi/15 and Ts=0.2
% xa(t) = 3*cos(5*t+pi/6);
clear all; close all;
clc;
n=0:20; % discrete time vector
Ts1=pi/15; % sampling period 1
yn1=3*cos(5*n*Ts1+pi/6); % output at sampling period 1
t1 = n*Ts1; % sampling tim

Due: before class on Tuesday, November 18
Required reading: Prince and Links: Chapters 12 and 13
Suggested reading: Andrew Webb, Introduction to Medical Imaging: Chapter 4 MRI
1. Assume a pig head is imaged inside an MRI scanner. The head has a size of 20

1.
BW G x FOVx 42.58 MHz / T *80 mT / m * 20cm 681120 Hz
2.
BWRF G z z , z
BWRF
100 KHz
2.94cm
Gz
42.58MHz / T *80mT / m
3.
z
z
90o
x
y
y
x
(a)
(The right black arrow should point to y axis.)
x
(b)
z
z
90 o
y
-x
y
y
x
x
(c)
z
z
180 o
x
y
y
x
x
j (2 v0

Name:_ UIN: _ Group
members:_
ECEN 410 Computer Lab2: Image reconstruction methods
J. Ji, 2014 Fall, Texas A&M University
1.
2.
3.
Log in with you netID and password.
Go to ecampus.tamu.edu, log in using your user name and password and download the
ECEN41

a
Should be 91
Briefly describe the following concepts:
a. Transducer
A transducer converts electrical signals to acoustic signals, generates pulse of ultrasound, which are sent
through a patients body.
Ultrasound transducer can generate high frequency so