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Training Collections
Library Memberships
On-demand course library with video lectures, expert case reviews, and more
Fellowship Certificate™ Programs
Practice-focused training programs designed to help you gain experience in a specific subspecialty area.
Ultimate Learning Pass
Unlock access to our full Course Library and all self-paced Fellowships.
Continuing Medical Education (State CME)
Complete all of your state CME requirements in one convenient place.
Noon Conference (Free)
Get access to free live lectures, every week, from top radiologists.
Case of the Week (Free)
Get a free weekly case delivered right to your inbox.
Case Crunch: Rapid Case Review (Free)
Register for free live board reviews.
Dr. Resnick's MSK Conference
Learn directly from the MSK Master himself.
Lower Extremities MRI Conference
Musculoskeletal Imaging
For Training Programs
Supplement your training program with case-based learning for residents, registrars, fellows, and more.
For Private Practices
Upskill in high growth, advanced imaging areas.
Compliance
NewTrack, fulfill, and report on all your radiologists' credentialing and licensing requirements.
Emergency Call Prep
Prepare trainees to be on call for the emergency department with this specialized training series.
Lesson
CT Technology Overview
5 topics, 33 min.
Lesson
CT Image Quality
10 topics, 57 min.
Fundamentals of CT Image Quality
4 m.Scan Parameters Impacting Radiation Dose and Image Quality - Tube Current (mA)
9 m.Scan Parameters Impacting Radiation Dose and Image Quality - Tube Voltage (kV)
11 m.Scan Parameters Impacting Radiation Dose and Image Quality - Scan Time
4 m.Scan Parameters Impacting Radiation Dose and Image Quality - Pitch
7 m.Scan Parameters Impacting Radiation Dose and Image Quality - Scanner Fundamentals
3 m.Scan Parameters Impacting Radiation Dose and Image Quality - Reconstruction Algorithms
4 m.Measures of Image Quality - Spatial Resolution
8 m.Measures of Image Quality - Contrast Resolution and Noise
5 m.Measures of Image Quality - Trade Offs
7 m.Lesson
Cardiac CT Physics
3 topics, 11 min.
Lesson
CT Dosimetry: Measurements & Patient Dose Estimation
4 topics, 19 min.
Lesson
Advanced CT: Perfusion and Spectral CT (Dual Energy CT and Photon Counting CT)
9 topics, 33 min.
Overview of CT Perfusion
4 m.Applications for CT Perfusion
2 m.How to Do CT Perfusion Safely
8 m.Overview of Dual Energy CT (DECT)
2 m.Techniques for Obtaining DECT
5 m.Advantages of DECT
5 m.Overview of Photon Counting CT (PCCT)
3 m.Energy Integrating Detector (EID) vs Photon Counting Detector (PCD)
7 m.Key Takeaways
3 m.Lesson
Conclusion
1 topic, 1 min.
0:01
Let me now explain some of the advanced
0:04
CT functions. Among them, the more common one is the
0:08
cardiac CT physics.
0:10
So what is the principle behind cardiac CT physics?
0:13
When we started with looking at the scan parameter, which impacts
0:17
dose and image quality, I tend to group into three different category.
0:21
Among the primary factors are the following.
0:24
We already examined the impact of the tube current, tube voltage,
0:28
scan time, and pitch. Now I want to focus on the
0:32
scan acquisition time, which only applies for cardiac CT
0:36
protocols. In any other place, it does not directly impact.
0:40
So I highlight this when I'm introducing the cardiac
0:43
CT. Cardiac CT is a challenging imaging of cardiac
0:47
heart because heart is a very rapidly moving organ
0:51
in our body compared to every other tissue.
0:54
For CT to capture cardiac imaging, it has really
0:58
driving force the technology to do faster and faster
1:01
acquisition or larger and larger number of slice thickness.
Introduction to Advanced CT Functions
HIDEInteractive Transcript
0:01
Let me now explain some of the advanced
0:04
CT functions. Among them, the more common one is the
0:08
cardiac CT physics.
0:10
So what is the principle behind cardiac CT physics?
0:13
When we started with looking at the scan parameter, which impacts
0:17
dose and image quality, I tend to group into three different category.
0:21
Among the primary factors are the following.
0:24
We already examined the impact of the tube current, tube voltage,
0:28
scan time, and pitch. Now I want to focus on the
0:32
scan acquisition time, which only applies for cardiac CT
0:36
protocols. In any other place, it does not directly impact.
0:40
So I highlight this when I'm introducing the cardiac
0:43
CT. Cardiac CT is a challenging imaging of cardiac
0:47
heart because heart is a very rapidly moving organ
0:51
in our body compared to every other tissue.
0:54
For CT to capture cardiac imaging, it has really
0:58
driving force the technology to do faster and faster
1:01
acquisition or larger and larger number of slice thickness.
Report
Faculty
Mahadevappa Mahesh, PhD, FACR, MS, FAAPM, FACMP, FSCCT, FIOMP
Professor of Radiology and Cardiology
Johns Hopkins University School of Medicine
Tags
Physics and Basic Science
Nuclear Medicine
CT
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