U/S Pelvis at Dr. Essa Lab

U/S Pelvis at Dr. Essa Lab

A pelvic ultrasound, clinically referred to as a U/S Pelvis, is a non-invasive, radiation-free diagnostic imaging modality that utilizes high-frequency sound waves to produce real-time, high-resolution images of the organs, tissues, and vascular structures within the pelvic cavity. At Dr. Essa Laboratory & Diagnostic Centre, one of Pakistan’s most trusted and pioneer diagnostic networks headquartered in Karachi, this examination is performed using state-of-the-art ultrasound machines. The procedure is fundamental in evaluating both female and male pelvic anatomy, offering exceptional diagnostic clarity without exposing patients to ionizing radiation. This makes it an ideal first-line imaging choice for patients of all ages, including pregnant women.

The technology behind a pelvic ultrasound relies on the piezoelectric effect. A specialized transducer is placed against the skin or inserted internally, emitting high-frequency sound waves into the pelvic region. As these sound waves encounter tissues of varying densities—such as the muscular wall of the uterus, the fluid-filled urinary bladder, or solid pelvic masses—they reflect back to the transducer as echoes. A highly sophisticated computer system processes these returning signals in real time, converting them into detailed grayscale images. Additionally, color Doppler imaging can be activated to assess the direction, velocity, and volume of blood flow within pelvic blood vessels, ovarian vessels, or neoplastic masses.

For female patients, a pelvic ultrasound evaluates the uterus, endometrium (uterine lining), cervix, ovaries, fallopian tubes, and the surrounding pelvic spaces such as the pouch of Douglas. For male patients, the scan focuses on the urinary bladder, seminal vesicles, and the prostate gland. The clinical importance of this test cannot be overstated; it serves as a critical diagnostic tool for identifying gynecological disorders, urological conditions, and reproductive health issues. By choosing Dr. Essa Lab, patients benefit from highly experienced radiologists, advanced imaging technology, and a compassionate clinical environment that prioritizes patient comfort and diagnostic accuracy.

Clinical Procedure: What to Expect

Patient Preparation

Proper preparation is essential to ensure the highest quality images and accurate diagnostic reports. The preparation instructions for a pelvic ultrasound depend on whether the scan is performed transabdominally or transvaginally:

• Transabdominal Pelvic Ultrasound: This approach requires a full bladder. Patients must drink 4 to 6 glasses of water (approximately 1 to 1.5 liters) one hour before the scheduled appointment and are instructed not to empty their bladder. A full bladder acts as an acoustic window, pushing the air-filled bowel loops out of the pelvic cavity and allowing sound waves to travel clearly to the uterus, ovaries, or prostate.
• Transvaginal Pelvic Ultrasound (Female Patients Only): This internal scan requires an empty bladder. Patients will be asked to empty their bladder completely immediately before the procedure begins.
• Dietary Restrictions: Generally, there are no fasting requirements for a pelvic ultrasound. Patients can eat their regular meals and take their prescribed medications as usual.
• Clothing: It is recommended to wear loose, comfortable, two-piece clothing. You may be asked to change into a clinical gown depending on the specific requirements of the scan.

During the Procedure

The clinical experience during a pelvic ultrasound is designed to be safe, efficient, and minimally invasive. The exact steps vary based on the clinical approach selected by the referring physician and radiologist:

• Transabdominal Approach: The patient lies comfortably in a supine position (on their back) on the examination table. The radiologist or sonologist applies a warm, water-soluble acoustic gel to the lower abdomen. This gel eliminates air pockets between the skin and the transducer, facilitating the seamless transmission of sound waves. The practitioner gently presses and moves the transducer across the abdomen to capture images from multiple angles. The patient may feel mild pressure, especially with a full bladder, but the procedure is entirely painless.
• Transvaginal Approach: For female patients requiring high-resolution imaging of the endometrium or ovaries, an internal scan may be performed. The patient lies on her back with knees bent (lithotomy position). A slender, specialized transvaginal probe, covered with a sterile sheath and lubricated with gel, is gently inserted into the vagina. This approach positions the transducer closer to the pelvic organs, providing exceptionally detailed images. It may cause mild pressure or discomfort but is generally not painful.
• Duration: A standard pelvic ultrasound typically takes between 15 to 30 minutes to complete, depending on the complexity of the clinical presentation.
• Safety and Comfort: Because ultrasound uses sound waves rather than radiation, it is completely safe and carries no biological side effects. At Dr. Essa Lab, female chaperones and female radiologists are available to ensure maximum privacy, comfort, and cultural sensitivity for female patients.

When is a U/S Pelvis Performed?

Evaluation of Abnormal Uterine Bleeding

Physicians frequently request a pelvic ultrasound for female patients experiencing abnormal uterine bleeding (AUB). This includes menorrhagia (excessively heavy periods), metrorrhagia (bleeding between periods), postmenopausal bleeding, or irregular menstrual cycles. The scan allows radiologists to measure endometrial thickness, evaluate the structural integrity of the uterine wall, and identify benign or malignant growths that may be causing the bleeding, such as endometrial polyps, uterine fibroids, or adenomyosis.

Investigation of Pelvic Pain and Endometriosis

Acute or chronic pelvic pain is a common clinical symptom that warrants immediate diagnostic investigation. A pelvic ultrasound helps clinicians identify the underlying source of pain, which may range from pelvic inflammatory disease (PID) and tubo-ovarian abscesses to ovarian torsion, ruptured ovarian cysts, or deep infiltrating endometriosis. By visualizing the pelvic organs and assessing for localized tenderness during transducer pressure, the radiologist can pinpoint the anatomical origin of the patient’s discomfort.

Assessment of Ovarian Cysts and Masses

When a physical examination reveals a palpable pelvic mass, or when a patient presents with symptoms of abdominal bloating and fullness, a pelvic ultrasound is the primary imaging modality of choice. It is highly effective at differentiating between fluid-filled simple cysts, complex cysts containing solid components or septations, and solid ovarian neoplasms. Color Doppler imaging is utilized during this assessment to analyze vascular resistance and blood flow patterns within the mass, aiding in the differentiation between benign and malignant lesions.

Diagnostic Workup for Infertility

For couples experiencing difficulty conceiving, a pelvic ultrasound is an indispensable component of the fertility workup. It is used to perform follicular tracking (monitoring the growth and maturation of ovarian follicles during a menstrual cycle), assess the receptivity of the endometrial lining, and detect congenital uterine anomalies such as a septate, bicornuate, or unicornuate uterus. It also helps identify conditions like polycystic ovary syndrome (PCOS) or hydrosalpinx (fluid accumulation in the fallopian tubes) that can impair fertility.

Evaluation of Lower Urinary Tract and Prostate Symptoms

In male patients, a pelvic ultrasound is primarily performed to investigate lower urinary tract symptoms (LUTS), including urinary frequency, urgency, nocturia, weak urinary stream, or hematuria. The scan evaluates the size, volume, and echotexture of the prostate gland to diagnose benign prostatic hyperplasia (BPH) or prostatitis. It also assesses the urinary bladder for wall thickening, diverticula, calculi (stones), and measures the post-void residual (PVR) volume of urine to determine the severity of urinary retention.

What Does a U/S Pelvis Detect?

A pelvic ultrasound is a highly sensitive diagnostic tool capable of detecting a wide array of physiological changes, benign conditions, and pathological abnormalities. Some of the most common findings identified during this scan include:

• Uterine Fibroids (Leiomyomas): Benign monoclonal tumors of the uterine smooth muscle, categorized by location as intramural, subserosal, or submucosal.
• Endometrial Polyps: Benign localized overgrowths of the endometrial stroma and glands projecting into the uterine cavity.
• Ovarian Cysts: Including simple physiological cysts, corpus luteum cysts, hemorrhagic cysts, and dermoid cysts (mature cystic teratomas).
• Polycystic Ovary Syndrome (PCOS): Characterized by enlarged ovaries containing multiple small, peripherally located follicles (the “string of pearls” sign).
• Endometriomas: Often referred to as “chocolate cysts,” which are localized collections of ectopic endometrial tissue within the ovaries.
• Adenomyosis: A condition where endometrial tissue invades the muscular myometrium, causing uterine enlargement and diffuse heterogeneity.
• Pelvic Inflammatory Disease (PID): Showing signs of pelvic inflammation, thickened fallopian tubes, or fluid collections.
• Hydrosalpinx: Distension and fluid accumulation within one or both fallopian tubes, often secondary to infection or adhesions.
• Tubo-Ovarian Abscess: A complex inflammatory mass involving the fallopian tube and ovary, indicating severe pelvic infection.
• Ovarian Torsion: A surgical emergency characterized by the twisting of the ovary on its pedicle, leading to compromised blood flow, visible on Doppler imaging.
• Endometrial Hyperplasia: Abnormal thickening of the endometrial lining, which may require biopsy to rule out malignancy.
• Uterine Malignancies: Including endometrial carcinoma or uterine sarcoma, presenting as irregular endometrial masses or invasion.
• Ovarian Cancer: Solid or complex ovarian masses with internal vascularity, irregular borders, and associated ascites.
• Cervical Nabothian Cysts: Common, benign mucus-filled cysts on the surface of the cervix.
• Congenital Uterine Anomalies: Structural variations such as uterus didelphys, bicornuate uterus, septate uterus, or arcuate uterus.
• Retained Products of Conception (RPOC): Persistent placental or fetal tissue within the uterine cavity following childbirth, miscarriage, or abortion.
• Ectopic Pregnancy: A life-threatening condition where a fertilized ovum implants outside the uterine cavity, most commonly in the fallopian tube.
• Intrauterine Device (IUD) Localization: Verifying the correct anatomical positioning of an IUD within the endometrial cavity.
• Free Fluid in the Pelvis: Accumulation of physiological or pathological fluid (ascites, blood, or pus) in the pouch of Douglas.
• Benign Prostatic Hyperplasia (BPH): Non-cancerous enlargement of the prostate gland in male patients, often compressing the bladder neck.
• Prostate Calcifications: Small, benign mineral deposits within the prostatic parenchyma.
• Urinary Bladder Calculi: Mineral deposits or stones residing within the urinary bladder cavity.
• Bladder Diverticula: Outpouchings of the bladder wall, often resulting from chronic urinary obstruction.
• Bladder Wall Thickening: Hypertrophy of the detrusor muscle, commonly seen in chronic bladder outlet obstruction.
• Urinary Bladder Tumors: Focal masses or mucosal irregularities arising from the transitional epithelium of the bladder.

Turnaround Time and Report Access at Dr. Essa Lab

At Dr. Essa Laboratory & Diagnostic Centre, we understand that timely diagnostic results are crucial for effective clinical decision-making and patient peace of mind. Once your pelvic ultrasound is completed, the captured images are immediately transferred to our secure Picture Archiving and Communication System (PACS). A board-certified consultant radiologist reviews the images, correlates them with your clinical history, and drafts a comprehensive, structured diagnostic report.

The final verified report is typically available within a few hours of the procedure. Dr. Essa Lab offers multiple convenient ways to access your diagnostic reports. Patients can collect their physical reports directly from the diagnostic center where the scan was performed. Alternatively, reports can be accessed online through the official Dr. Essa Lab web portal or mobile application. Patients receive an SMS notification containing a direct link and secure login credentials as soon as the report is verified and ready for download.

U/S Pelvis Findings Overview

The following table provides a general overview of the anatomical structures evaluated during a pelvic ultrasound, contrasting normal physiological findings with potential pathological abnormalities:

Structure / Parameter Evaluated	Normal Findings	Possible Abnormal Findings
Uterus (Size & Shape)	Normal pear-shaped organ; dimensions appropriate for age and parity; smooth outer contours.	Enlargement (fibroids, adenomyosis); congenital structural anomalies (bicornuate, septate uterus).
Endometrium (Lining)	Homogeneous texture; thickness varies appropriately with menstrual cycle phase (typically < 14mm premenopausal, < 5mm postmenopausal).	Endometrial thickening (hyperplasia); focal masses (polyps, carcinoma); irregular margins; fluid in cavity.
Ovaries	Symmetrical, normal volume; presence of physiological follicles; normal stromal echogenicity.	Ovarian cysts (simple or complex); endometriomas; polycystic appearance (PCOS); solid masses; absent blood flow (torsion).
Fallopian Tubes	Typically thin and not clearly visible on routine ultrasound unless pathology is present.	Fluid-filled, dilated tubes (hydrosalpinx/pyosalpinx); ectopic gestational sac; tubo-ovarian complex.
Urinary Bladder	Anechoic (fluid-filled) lumen; smooth, thin walls (typically < 3mm when full); no internal masses or stones.	Wall thickening (trabeculation); bladder calculi (stones); bladder diverticula; intraluminal masses (tumors).
Prostate Gland (Males)	Normal volume (typically < 25-30 cc); homogeneous echotexture; smooth margins.	Enlargement (BPH); heterogeneous echotexture (prostatitis); focal nodules; calcifications.
Pelvic Cavity / Spaces	Minimal to no free fluid in the pouch of Douglas (rectouterine pouch).	Moderate to large free fluid (ascites, hemoperitoneum, ruptured cyst); pelvic abscess; loculated fluid collections.

Note: Diagnostic findings should always be interpreted by a qualified healthcare professional together with the patient’s symptoms, medical history, physical examination, laboratory investigations, previous imaging studies, and other relevant clinical information. Additional investigations or specialist consultation may be recommended depending on the findings.

Why Choose Dr. Essa Lab for U/S Pelvis?

• Experienced Healthcare Professionals: Our ultrasound scans are performed and interpreted by highly qualified, board-certified consultant radiologists and sonologists with extensive experience in pelvic and gynecological imaging.
• Patient-Focused Care: We prioritize patient dignity, comfort, and privacy. Female radiologists and chaperones are always available to ensure a comfortable environment for sensitive examinations.
• Quality Diagnostic Services: Dr. Essa Lab is a pioneer in diagnostic medicine in Pakistan, maintaining strict quality control protocols and adhering to international diagnostic standards.
• Modern Diagnostic Approach: We utilize high-resolution ultrasound machines equipped with advanced transabdominal, transvaginal, and color Doppler transducers to ensure maximum diagnostic accuracy.
• Convenient Locations: With an extensive network of branches across Karachi and other major cities, patients can easily access our diagnostic services close to their homes.
• Affordable and Transparent Pricing: We offer highly competitive and transparent pricing for all diagnostic imaging scans, ensuring quality healthcare remains accessible.
• Rapid Reporting and Digital Access: Our streamlined reporting workflow ensures that your verified ultrasound reports are available online within hours of your scan.
• Legacy of Trust: Established in 1987 by Prof. Dr. M. Essa, our diagnostic center has built over three decades of trust with patients and the medical community across Pakistan.