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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.
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Get a free weekly case delivered right to your inbox.
Case Crunch: Rapid Case Review (Free)
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Dr. Resnick's MSK Conference
Learn directly from the MSK Master himself.
Lower Extremities MRI Conference
Musculoskeletal Imaging
PET Imaging
Pediatric 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
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Emergency Call Prep
Prepare trainees to be on call for the emergency department with this specialized training series.
1 topic, 4 min.
3 topics, 8 min.
3 topics, 11 min.
23 topics, 1 hr. 1 min.
Hydronephrosis Due to Stricture
3 m.Hydronephrosis Due to Nephrolithiasis
3 m.Gas in the Collecting System Due to Reflux
3 m.Pyelitis
3 m.Pyelonephritis
3 m.Renal Infarct
3 m.Neoplasm – Renal Cell Carcinoma
3 m.Neoplasm – Post-Transplant Lymphoproliferative Disorder
3 m.Post-Transplant Lymphoproliferative Disorder Metastatic
2 m.Collections – Hematoma
3 m.Collections – Urinoma
3 m.Acute Tubular Necrosis
4 m.Acute Rejection
4 m.Chronic Rejection/Drug Toxicity
4 m.Renal Artery Stenosis
5 m.Renal Vein Stenosis
3 m.Renal Vein Thrombosis
4 m.Renal Artery and Vein Thrombosis
3 m.Vascular Compromise Due to Subcapsular Hematoma
3 m.Reversed Diastolic Flow due to Subcapsular Hematoma
2 m.Pseudoaneurysm
2 m.Arteriovenous Fistula (AVF)
3 m.Complications Summary
4 m.0:00
This patient had a renal transplant and fresh out
0:03
of the or we were asked to evaluate to make
0:06
sure that everything was looking good. And so this trans was
0:09
placed in the right lower quadrant. You can see it over here on grayscale Imaging
0:12
looks reasonably good. We don't see any big masses. We
0:15
don't see on this image at least any big collections. We can measure the transmission
0:18
we've done here and one of the important things
0:21
to do is after you get those initial gray scale images, you gotta get
0:24
color images and you really want to make sure there's flow throughout the
0:27
transplanted, kidney.
0:29
But what are we seeing over here?
0:31
Good amount of flow everywhere. There is a portion right
0:34
over here it almost look wet shaped if you want to sort of draw it
0:37
out that doesn't have flow within it.
0:39
And so that is unusual. You can
0:42
certainly look at it again on different color image over
0:45
here to see if anything changes certainly no flow again
0:48
in that area.
0:49
We're measuring some of the intraprenchymal vessels
0:52
over here coming back to that region again no
0:55
flow. And so we try different techniques
0:58
that are more sensitive to subtle areas of flow in here.
1:01
You can see all the blue area has flow this area here, which
1:04
is dark has no flow despite all
1:07
the techniques that we use and so that's sort of consistent across whatever
1:10
techniques that we try to see
1:13
if they're slow in this region. And so when you start to see that God worry
1:16
about it or you know in fart that's important
1:19
to remember that renaline Park can occur really at any time
1:22
after the patient has their transplant place and it may
1:25
be second mental as sort of seen in this instance.
1:28
Or could be quite Global as well. Not the whole kidney in
1:31
parks. There are a number of ideologies often. It
1:34
could be due to vascular thrombosis particularly. If
1:37
there's a very small accessory artery that becomes thrombosed.
1:41
emboli infections
1:44
You know if during the surgery they ligate it's a small renal
1:47
arteries on purpose or inadvertently. I would say that
1:50
maybe that could also cause a small infarct patient may present with
1:53
some pain at the site of the infarctic due to
1:56
irritation of the adjacent fascia. And this is
1:59
something you're really going to pick up when you do those color images
2:02
when you see a consistent to reach and just does not
2:05
fill with color flow. And so that would be compatible with
2:08
an infarct.
Interactive Transcript
0:00
This patient had a renal transplant and fresh out
0:03
of the or we were asked to evaluate to make
0:06
sure that everything was looking good. And so this trans was
0:09
placed in the right lower quadrant. You can see it over here on grayscale Imaging
0:12
looks reasonably good. We don't see any big masses. We
0:15
don't see on this image at least any big collections. We can measure the transmission
0:18
we've done here and one of the important things
0:21
to do is after you get those initial gray scale images, you gotta get
0:24
color images and you really want to make sure there's flow throughout the
0:27
transplanted, kidney.
0:29
But what are we seeing over here?
0:31
Good amount of flow everywhere. There is a portion right
0:34
over here it almost look wet shaped if you want to sort of draw it
0:37
out that doesn't have flow within it.
0:39
And so that is unusual. You can
0:42
certainly look at it again on different color image over
0:45
here to see if anything changes certainly no flow again
0:48
in that area.
0:49
We're measuring some of the intraprenchymal vessels
0:52
over here coming back to that region again no
0:55
flow. And so we try different techniques
0:58
that are more sensitive to subtle areas of flow in here.
1:01
You can see all the blue area has flow this area here, which
1:04
is dark has no flow despite all
1:07
the techniques that we use and so that's sort of consistent across whatever
1:10
techniques that we try to see
1:13
if they're slow in this region. And so when you start to see that God worry
1:16
about it or you know in fart that's important
1:19
to remember that renaline Park can occur really at any time
1:22
after the patient has their transplant place and it may
1:25
be second mental as sort of seen in this instance.
1:28
Or could be quite Global as well. Not the whole kidney in
1:31
parks. There are a number of ideologies often. It
1:34
could be due to vascular thrombosis particularly. If
1:37
there's a very small accessory artery that becomes thrombosed.
1:41
emboli infections
1:44
You know if during the surgery they ligate it's a small renal
1:47
arteries on purpose or inadvertently. I would say that
1:50
maybe that could also cause a small infarct patient may present with
1:53
some pain at the site of the infarctic due to
1:56
irritation of the adjacent fascia. And this is
1:59
something you're really going to pick up when you do those color images
2:02
when you see a consistent to reach and just does not
2:05
fill with color flow. And so that would be compatible with
2:08
an infarct.
Report
Faculty
Mahan Mathur, MD
Associate Professor, Division of Body Imaging; Vice Chair of Education, Dept of Radiology and Biomedical Imaging
Yale School of Medicine
Tags
Vascular
Ultrasound
Kidneys
Iatrogenic
Genitourinary (GU)
Body
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