A: Chemical shift artifact (arrows) on T1-weighted gradient echo scan in right ovarian dermoid cyst. This finding is the white on black line that occurs.

Slides:

Advertisements

Similar presentations

(A, B) An 8-year-old girl with abdominal pain and cystic mass arising from the right ovary on sonography. Notice fat plug (white arrow). (C) MRI showing.

Advertisements

Endometrial cancer. A, B: Long-axis images of a polypoid mass surrounded by a thin sliver of intraluminal fluid. This tumor occupied the entire uterine.

TV-CDS of early intrauterine pregnancy

TV-CDS of early intrauterine pregnancy

This is a dual view of a fetal spine

A 26-year-old woman with giant intracranial left internal carotid artery aneurysm. A. MRI brain scan shows pulsation artifact in large left retro-orbital.

Normal 5-week intrauterine pregnancy (IUP)

3D and 4D ultrasound volume ultrasound can obtain image planes and provide depth far beyond the capability of 2D ultrasound. Source: VOLUME SONOGRAPHY:

Workflow diagram depicting the main steps in scanning with 2D and 3D/4D ultrasound. The scan is always started in 2D and the area of interest is mapped.

This is a composite image of various 3D/4D ultrasound instruments

Avascular necrosis (AVN) of the humeral head

Sagittal T2-weighted MRI of lumbar spine showing multilevel disk bulges, ligamentum flavum hypertrophy, and retrolisthesis at L2-L3. Source: Neurosurgery,

Complex, predominantly cystic masses

Complex, predominantly cystic masses

Acoustic enhancement increasing the signal off the posterior wall of the bladder (black arrow). Source: Chapter 2. Ultrasound Basics, Handbook of Critical.

Recording of fetal heart rate and uterine activity

Completely cystic masses

Forearm support for sustained work at the computer.

Miscellaneous conditions

Olecranon bursitis. (A) Lateral radiograph of the elbow in a patient with gout. There is soft tissue swelling over the olecranon as well as calcifications.

This figure presents a dual view of a conventional 2D image and VCI-A volume contrast imaging in plane A) still TIFF image generated from a 4D video sequence.

TV-CDS of early intrauterine pregnancy

Staging of endometriosis

Appearance of an ovarian cyst at surgery

Solid masses. A: Transverse sonogram showing enlarged right ovary (between +'s) with echogenic areas consistent with hemorrhage due to ovarian rupture.

Solid masses. A: Transverse sonogram showing enlarged right ovary (between +'s) with echogenic areas consistent with hemorrhage due to ovarian rupture.

Complex predominantly solid masses

Sagittal T2-weighted MRI scan of a Chiari showing typical peg-like appearance of cerebellar tonsils and associated syringomyelia. Source: Neurosurgery,

Posterior glenohumeral dislocation in a 51-year-old man with shoulder pain and the humeral head fixed in internal rotation. (A) Anteroposterior radiograph.

TV-CDS of early intrauterine pregnancy

Sagittal transvaginal view illustrating an IUD

Color/power Doppler (HD-flow™, GE Healthcare, Milwaukee, WI, USA) in other renal abnormalities. A, A': In a case of horseshoe kidney, color Doppler sonography.

(Data from Rosenfeld RL. N Engl J Med 2005; 353:2578–2588.)

Amplitude versus frequency transvaginal color Doppler sonography (TV-CDS). A: Frequency-based TV-CDS shows solid mass within the left ovary without significant.

Tubal obstruction (extrinsic)

(Data from Rosenfeld RL. N Engl J Med 2005; 353:2578–2588.)

MRI findings in MS. A. Axial first-echo image from T2-weighted sequence demonstrates multiple bright signal abnormalities in white matter, typical for.

Cervical pregnancy. A. Transvaginal sonography, sagittal view of a cervical pregnancy. Sonographic findings with cervical pregnancy may include: (1) an.

This is a composite image of 2 different cases of 3D sonohysterography

Other adnexal masses and conditions

Complicated early pregnancy. A: TVS of an embryonic demise

Fibroids. A: Transabdominal sonogram (TAS) of large uterine fibroid (arrow) extending from uterine fundus. B: Transverse TAS of degenerated fibroid (arrow)

Major scanning planes for transabdominal sonography (TAS) and transvaginal sonography (TVS). A: Normal adult, parous uterus in long and short axis as depicted.

(Reproduced, with permission, from Emiliano Chavira, MD.)

Sonographic images of retained products of conception shown on longitudinal (A) and transverse (B) views as echogenic material in the lower uterine segment.

Fixed flexion deformity of the hips

Sonographic images of monochorionic twins

An AP pelvis x-ray showing a patient with a normal left hip joint and right hip bone-on-bone arthritis. Note the dark, radiolucent “gap” between the ball.

Aliasing on a Doppler waveform, a consequence of the Doppler frequency being greater than having the pulse repetition frequency. Source: Chapter 2. Instrumentation,

42-year-old female with abdominal pain after karate kick with gross hematuria. Upper left: Axial T1-weighted out-of-phase gradient echo image reveals high.

Normal 5-week intrauterine pregnancy (IUP)

Graphic illustration of different volume ultrasound probes, volume acquisitions, and beam characteristics. A: Free-hand acquisition where the probe is.

Twins commonly experience decreased growth after 26 to 28 weeks and, as in this set, the effect may be more pronounced on the smaller of the twins. At.

Sonohysterography (SHG) in infertility

Moderate to severe urinary tract dilation

Sonohysterography (SHG) in infertility

Normal 6- to 7-week IUP. A: Magnified TV sonogram of 3-mm embryo/yolk sac (arrow). Compare to Figure 3-1H. B: TV sonogram of 6-week IUP with 6-mm embryo.

Normal 6- to 7-week IUP. A: Magnified TV sonogram of 3-mm embryo/yolk sac (arrow). Compare to Figure 3-1H. B: TV sonogram of 6-week IUP with 6-mm embryo.

PD-weighted images typically have long TR (>2000 ms) and short TE (

Twelve representative volumes arranged by gestational age

Multifetal pregnancy. A: TAS of normal 7-week diamniotic, dichorionic twin IUP. B: TVS of demised embryo (+'s) adjacent to living twin at 7 weeks. C: TAS.

Fibroids. A: Transabdominal sonogram (TAS) of large uterine fibroid (arrow) extending from uterine fundus. B: Transverse TAS of degenerated fibroid (arrow)

Septate ovarian cyst. A: Traditional 2D image of a septate ovarian cyst. B: Surface rendering of the inside of the cyst showing a smooth wall and a single,

Septate ovarian cyst. A: Traditional 2D image of a septate ovarian cyst. B: Surface rendering of the inside of the cyst showing a smooth wall and a single,

Renal dysplasia secondary to posterior urethral valves

Solid masses. A: Transverse sonogram showing enlarged right ovary (between +'s) with echogenic areas consistent with hemorrhage due to ovarian rupture.

Fetal endoscopic tracheal occlusion (FETO) for severe congenital diaphragmatic hernia. (Used with permission from Dr. Rodrigo Ruano, Texas Children’s Hospital,

Open maternal-fetal repair for fetal myelomenigocele

Ectopic pregnancy: uterine sonographic findings

This is a first trimester scan in a fetus with monosomy X

Presentation transcript:

A: Chemical shift artifact (arrows) on T1-weighted gradient echo scan in right ovarian dermoid cyst. This finding is the white on black line that occurs at the fat–water interface in the frequency encoding direction and is pathognomonic of a dermoid cyst. B: Note the dark signal in the fat contents (arrow) on this T1-weighted fat-suppressed gradient echo scan. Source: MRI OF THE FEMALE PELVIS: PROBLEM SOLVING SONOGRAPHIC UNCERTAINTIES, Sonography in Obstetrics and Gynecology: Principles & Practice, 7e Citation: Fleischer AC, Toy EC, Lee W, Manning FA, Romero RJ. Sonography in Obstetrics and Gynecology: Principles & Practice, 7e; 2014 Available at: http://obgyn.mhmedical.com/DownloadImage.aspx?image=/data/books/1414/fle_ch48_f012b.png&sec=76397812&BookID=1414&ChapterSecID=76397753&imagename= Accessed: October 03, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved