Color Doppler Ultrasonography (CDUS)

What is Obstetric Doppler Ultrasound? Many patients ask this question, so we wanted to share information about what obstetric Doppler ultrasound is and what can be seen during this examination to provide a better understanding of the topic. Obstetric Doppler is an ultrasound examination that helps evaluate the baby’s growth, blood flow to different parts […]

Upper Extremity Arterial Doppler Ultrasound The arterial system of the upper extremity requires a different diagnostic approach compared to that used for the lower extremity. While the progression of focal atherosclerosis or acute arterial embolism is almost always the cause of symptomatic disease in the lower extremity, upper extremity arterial disease is more complex. Pathologies […]

Upper Extremity Venous Doppler Ultrasound The incidence of upper extremity deep vein thrombosis (DVT) is much higher than previously thought, particularly with the increased use of central venous catheters, pacemaker implantation, and in patients with cancer or hypercoagulable states. Upper extremity deep vein thrombosis is also associated with significant complications such as pulmonary embolism, superior […]

Transvaginal Color Doppler Ultrasound Ultrasound is an integral part of modern gynecological examination. Transvaginal ultrasound has allowed for a much more detailed examination of gynecological physiological and pathological processes by evaluating the organs of interest more closely with a high-frequency probe. In addition to the gray-scale views of the ovaries and endometrium, which change throughout […]

Transrectal Color Doppler Ultrasonography (TRUS) The prostate is part of the male reproductive system. It is a walnut-sized gland located below the bladder and in front of the rectum in men. It surrounds the urethra (the tube that carries urine and semen out of the body). Prostate tissue produces part of the seminal fluid (the […]

Celiac Trunk Color Doppler Ultrasound The celiac artery, also called the celiac trunk, is the first major visceral branch of the abdominal aorta. It originates from the anterior aortic surface between the diaphragmatic crura. Shortly after its origin, approximately 1 to 3 cm away, it bifurcates into the common hepatic and splenic arteries, which are […]

What is Abdominal Color Doppler Ultrasound? Abdominal Color Doppler ultrasound is an imaging method that examines the organs and blood vessels within the abdominal cavity, as well as the blood circulation of the internal organs. The technique is based on the physical law known as the Doppler Effect, which describes the relationship between ultrasonic waves […]

Abdominal Aorta Color Doppler Ultrasound The abdominal aorta reflects the Doppler flow pattern of all its branches. Therefore, aortic blood flow pattern changes related to stenosis (high-speed flow) or aneurysmal dilation (low-speed flow) can be transmitted to its branches. This is why we always begin mesenteric and renal artery evaluations by assessing the abdominal aorta […]

Mass Lesion Color Doppler Ultrasound The growth of malignant tumors largely depends on the blood supply provided by new vessels, which develop under the tumor’s angiogenic stimulation. These new vessels penetrate the lesion. The course and distribution of these vessels within the tumor are chaotic and irregular, with multiple anastomoses and shunts. The irregular course […]

Scrotal Color Doppler Ultrasound Advances in imaging technology, especially with high-frequency probes and improved Doppler sensitivity, have greatly enhanced the detection of testicular anatomy and pathology. Hemodynamic information obtained via Doppler contributes to imaging findings and often confirms the diagnosis. The two most common clinical situations requiring scrotal examination with color Doppler ultrasound are acute […]

Penile Doppler Ultrasound Penile erection is a complex phenomenon coordinated by the interaction of arterial, venous, and nervous systems. A defect or lack of coordination in any of these systems can lead to erectile dysfunction, defined as the inability to achieve or maintain a sufficient penile erection for sexual intercourse. Erectile dysfunction can occur in […]

What is Orbital Color Doppler Ultrasound? Orbital color Doppler ultrasound is an imaging method used to evaluate blood flow in the orbit. It assists in the diagnosis, prognosis, and monitoring of various ophthalmic diseases. Color Doppler ultrasound is a non-invasive technique used to create two-dimensional images of normal and pathological blood vessels. It is an […]

What is Breast Color Doppler Ultrasound? Breast color Doppler ultrasound is one of the four main methods used in diagnosing breast diseases. The other three methods are mammography, magnetic resonance imaging (MRI), and ultrasound-guided needle biopsy. Breast ultrasound and color Doppler are techniques that do not expose patients to radiation or its related risks. The […]

What is Thyroid Color Doppler Ultrasound? Thyroid color Doppler ultrasound is a painless procedure that uses sound waves to create images of blood vessels in your body. It is used to examine the thyroid gland for abnormalities such as cysts, nodules, or tumors. Why is a Thyroid Color Doppler Ultrasound Done? Your doctor may order […]

What is Portal Doppler Ultrasound and How to Prepare for It? Portal Doppler is crucial because it monitors blood flow in the portal and hepatic vessels of the liver. People suffering from cirrhosis, hepatitis, or other liver conditions, or those with blood tests highlighting elevated liver enzymes, may be asked to undergo a liver scan. […]

What is Renal Doppler? Renovascular disease, most commonly caused by fibromuscular dysplasia and atherosclerotic disease, manifests in one of three forms: asymptomatic renal artery stenosis (RAS), renovascular hypertension, and ischemic nephropathy. The atherosclerotic form is especially a progressive condition that can lead to gradual and silent loss of kidney function, making early diagnosis of RAS […]

Lower Extremity Arterial Doppler Examination What is Leg (Lower Extremity) Arterial Doppler Ultrasound? The arterial Doppler examination of the legs is an imaging method used to evaluate blood circulation and check for blockages or narrowing in the leg arteries. Peripheral Circulation The function of blood circulation is to transport nutrients and oxygen to the body’s […]

Lower Extremity Venous Color Doppler Examination Venous color Doppler ultrasound of the lower extremities is often performed to investigate the cause of swelling in the legs. While deep vein thrombosis (DVT) is a common cause, there are many other potential reasons for leg swelling. Normally, veins in the extremities exhibit a respiratory phasicity or cardiac […]

Carotid Vertebral Artery Color Doppler Ultrasound Carotid vertebral artery color Doppler ultrasound is an excellent screening tool to assess whether carotid artery stenosis is hemodynamically significant. It is a crucial imaging method to be performed before angioplasty, endarterectomy, or stent placement. Stroke is the third leading cause of death after heart disease and cancer. The […]