Obstetric ultrasound dating measurements

Slides:

Advertisements

Similar presentations

Beta-thalassemia major. (Peripheral blood, 50 ×

Advertisements

Crohn disease of the colon

Myoma. Longitudinal sonogram of the pelvis demonstrating an enlarged myomatous uterus. A large anterior uterine myoma (M) can be seen displacing the endometrial.

Ulcerative colitis. This image from the colon shows edematous and inflamed mucosa indicative of severe inflammation. Although this patient has ulcerative.

Comparison of findings in sputum and saliva (inadequate sample)

Management of asthma exacerbations: emergency department and hospital-based treatment. (Adapted from National Asthma Education and Prevention Program.

Aphthous ulcers in Crohn disease

Obstetric ultrasound dating measurements

KOH preparation showing branched hyphae and budding yeast of Candida albicans. (Reproduced, with permission, from DeCherney AH, Pernoll ML [editors]. Current.

Hemoglobin H disease. (Peripheral blood, 50 ×

Enterocele and prolapsed uterus

Enterocele and prolapsed uterus

Iron deficiency anemia. (Peripheral blood, 50 ×

Normal gastroesophageal junction: Note the gastroesophageal junction in this picture which is defined by the junction of the normal pearly white esophageal.

Barotrauma in ARDS. A: Chest radiograph demonstrates diffuse lung consolidation secondary to ARDS. Parenchymal stippling is present, with lucent perivascular.

Lichen simplex chronicus resulting from repeated itch-scratch cycles

Acne vulgaris, severe nodular cystic form with scarring

Algorithm for the management of aortic valve stenosis

Hypothetical distribution of test results for healthy and diseased individuals. The position of the "cutoff point" between "normal" and "abnormal" (or.

A: Esophageal varices: Upper endoscopy demonstrates four columns of esophageal varices. A consequence of portal hypertension, esophageal varices are one.

Seborrheic keratosis. (Reproduced, with permission, from Bondi EE, Jegasothy BV, Lazarus GS [editors]. Dermatology: Diagnosis & Treatment. Originally published.

The typical course of acute and chronic hepatitis C

Radiographs of the right femur in a patient with juvenile Paget disease before (left) and after (right) 10 months of treatment with calcitonin. Note the.

Radiation-induced pulmonary fibrosis

Internal hemorrhoids. (Used, with permission, from John Cello, MD.)

Left partial third nerve palsy with ptosis (A), reduced adduction (B), elevation (C), and depression (D) but normal abduction (E) of the left eye. Source:

Ulcerative colitis proctitis: The rectal mucosa appears congested, edematous, with several areas of exudate and loss of the normal vascular pattern in.

In diastolic dysfunction, the diastolic pressure-volume relationship is shifted upward and to the left (dashed line), which leads to an elevated left ventricular.

Hydronephrosis. A: Longitudinal scan from a patient with hydronephrosis due to chronic reflux. Numerous dilated fluid-filled spaces (calices) are seen.

Eosinophilic pneumonia

Hands of patient with pseudohypoparathyroidism

Nonalcoholic steatohepatitis (NASH)

Hairy cell leukemia. (Bone marrow core biopsy, 50 ×

A: Congenital bicuspid aortic valve, producing isolated aortic stenosis. In this young adult, the aortic valve is calcified (black arrow). The left ventricular.

Pulmonary sarcoidosis

Gallstones. Longitudinal ultrasonogram through the right upper quadrant. The gallbladder contains both sludge and stones (arrows). The gallstones are characteristically.

Radiation-induced pulmonary fibrosis

Dry (atrophic) age-related macular degeneration with patchy focal atrophy (A) and extensive confluent atrophy (B). Source: Disorders of the Eyes & Lids,

Ultra-widefield (Optomap) images of atrophic age-related macular degeneration. A: Patch of retinal atrophy exposing the underlying choroid (arrow). B:

Thin film Giemsa-stained micrograph with Plasmodium malariae trophozoite. (From Steven Glenn, Laboratory & Consultation Division, Public Health Image Library,

Ulceration from infarction of the tip of the third digit of the left hand resulting from Raynaud phenomenon in a patient with scleroderma. (Used, with.

The Canadian Hypertension Education Program expedited assessment and diagnosis of patients with hypertension: Focus on validated technologies for blood.

Holter monitor ECG of a 65-year-old man showing marked ST depression of myocardial ischemia when the patient carried out his ordinary work routine as a.

Holter monitor ECG of a 65-year-old man showing marked ST depression of myocardial ischemia when the patient carried out his ordinary work routine as a.

Ultra-widefield (Optomap) images of atrophic age-related macular degeneration. A: Patch of retinal atrophy exposing the underlying choroid (arrow). B:

A, B: Plaque-like psoriasis of the scalp with characteristic silvery, thick scale distinguishes it from seborrheic dermatitis of the scalp. (Used, with.

Metabolism of chylomicrons

Esophageal adenocarcinoma: Note the ulcerated mass with fungating heaped up borders in this esophageal mass seen in the lower end of the esophagus. (Used,

Prostate cancer mortality as a factor of Gleason score and age at diagnosis in men managed conservatively. (Adapted, with permission, from Albertsen PC.

Primary ocular herpes simplex virus infection

Hairy cell leukemia. (Bone marrow core biopsy, 50 ×

This abdominal Tc-99m pertechnetate scintigraphy was performed 15 minutes after the radionuclide injection. The spherical area of increased uptake (arrow)

Varicose veins, manifested as blue, subcutaneous, tortuous veins more than 3 mm in diameter. (Used, with permission, from Dean SM, Satiani B, Abraham WT.

Venous stasis ulcer. (Reproduced, with permission, from Bondi EE, Jegasothy BV, Lazarus GS [editors]. Dermatology: Diagnosis & Treatment. Originally published.

Myoma. Longitudinal sonogram of the pelvis demonstrating an enlarged myomatous uterus. A large anterior uterine myoma (M) can be seen displacing the endometrial.

Patterns of prostate cancer according to the 2005 International Society of Urological Pathology Consensus Conference on Gleason system. (Adapted with permission.

Internal hemorrhoids. (Used, with permission, from John Cello, MD.)

Patient with mild ophthalmopathy of Graves disease

Crohn ileitis: The area of patchy inflammation, congestion, edema and whitish exudates consistent with ileal inflammation in this patient with Crohn ileitis.

Subcutaneous atrophy from insulin injections

Ultra-widefield (Optomap) image of central retinal vein occlusion with retinal hemorrhages throughout the retina and a cotton-wool spot (arrow). (Used,

Keratoderma blennorrhagica of the soles due to reactive arthritis (Reiter syndrome). (From Susan Lindsley, Public Health Image Library, CDC.) Source: Rheumatologic,

Circinate balanitis due to reactive arthritis (Reiter syndrome)

Circinate balanitis due to reactive arthritis (Reiter syndrome)

Large pedunculated polyp: An 18 mm polyp is seen in the descending colon with a long stalk. The polyp was removed with snare cautery. On histology, the.

Ulcerative colitis proctitis: The rectal mucosa appears congested, edematous, with several areas of exudate and loss of the normal vascular pattern in.

Endometrioma. A: Transverse sonogram through the pelvis in a patient with a left adnexal mass. A thick-walled left adnexal cystic mass (E) is seen adjacent.

Chest radiograph cardiac enlargement, with prominence of the pulmonary artery, right atrium, and right ventricle, in a patient with primary pulmonary hypertension.

Dilated bile ducts. A: CT shows a dilated distal bile duct (arrowhead)

Azita Amiri, Anne Turner-Henson

Presentation transcript:

Obstetric ultrasound dating measurements Obstetric ultrasound dating measurements. A: Transverse axial sonogram of the fetal head. This is a typical plane of section used to measure the biparietal diameter (BPD) across the head (from one electronic caliper to the other). The head circumference (HC) can also be measured. This is a perimeter measurement around the fetal calvarium. B: Transverse axial sonogram of the fetal abdomen. This is the plane of section frequently used to measure the abdominal circumference (AC). This is also a perimeter measurement. C: Sonogram demonstrating the measurement of the fetal femur length (FL). The femur is measured from its calcified proximal to distal aspect. D: This chart demonstrates the four typical fetal measurements utilized in trying to define gestational age. The ultrasound age is usually an average of the four measurements–BPD, HC, AC, and FL–and is reported in menstrual weeks (MA). The result is always related to the patient's recollection of the first day of her last normal menstrual period (LMP); EDD, estimated date of delivery; EFW, estimated fetal weight (grams); CI, cephalic index (relationship of the measurement of the fetal head from front to back and side to side). (Used, with permission, from Peter W. Callen, MD.) Source: Obstetrics & Obstetric Disorders, Current Medical Diagnosis & Treatment 2017 Citation: Papadakis MA, McPhee SJ, Rabow MW. Current Medical Diagnosis & Treatment 2017; 2016 Available at: http://accessmedicine.mhmedical.com/DownloadImage.aspx?image=/data/books/1843/cmdt17_ch19_ef002b.png&sec=135713160&BookID=1843&ChapterSecID=135713107&imagename= Accessed: December 25, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved