Sternum AP/LAT/Oblique (DC) at Dr. Essa Lab

Sternum AP/LAT/Oblique (DC) at Dr. Essa Lab

The Sternum AP/LAT/Oblique (DC) is a highly specialized digital radiography (X-ray) series designed to evaluate the sternum (commonly known as the breastbone) from multiple anatomical angles. The sternum is a flat, T-shaped bone located in the center of the anterior chest wall, serving as a critical anchor for the rib cage and protecting vital mediastinal organs, including the heart and major blood vessels. Standard chest X-rays are often insufficient for evaluating the sternum due to the superimposition of the dense thoracic spine and mediastinal structures. Therefore, a dedicated sternal series utilizing Anteroposterior (AP), Lateral (LAT), and Oblique views is clinically essential to isolate the sternum and obtain clear, unobstructed diagnostic images.

At Dr. Essa Lab, this examination is performed using state-of-the-art Digital Radiography (DC / Digital Control) technology. Digital radiography represents a significant advancement over traditional film-based X-rays, utilizing electronic sensors to capture and instantly process images. This technology drastically reduces radiation exposure to the patient, enhances spatial resolution, and allows radiologists to manipulate image contrast and zoom to detect subtle micro-fractures or early bone pathology. The anatomical structures evaluated during this study include the manubrium, the sternal body (gladiolus), the xiphoid process, the sternoclavicular (SC) joints, and the sternocostal junctions. This comprehensive evaluation is crucial for diagnosing traumatic injuries, post-surgical complications, inflammatory joint diseases, and localized bone infections.

Clinical Procedure: What to Expect

Patient Preparation

Preparing for a Sternum AP/LAT/Oblique (DC) examination is straightforward, requiring minimal disruption to your daily routine. To ensure the highest image quality and patient safety, please follow these preparation guidelines:

• No Fasting Required: You do not need to fast or restrict your fluid intake prior to this examination. You may eat, drink, and take your regular medications as prescribed.
• Appropriate Attire: It is recommended to wear loose, comfortable clothing. You will be asked to change into a clean, hygienic hospital gown before the procedure to prevent clothing folds or thick fabrics from interfering with the X-ray beam.
• Removal of Metallic Objects: You must remove all metallic items from the chest and neck area. This includes necklaces, body piercings, bras with metal underwires, zippers, and shirts with metallic buttons or screen prints, as metal blocks X-rays and creates artifacts on the digital images.
• Pregnancy Notification: If you are pregnant or suspect you might be, you must inform the technologist before the procedure. While the radiation dose is extremely low, alternative imaging modalities or specialized lead shielding will be implemented to protect the developing fetus.
• Medical Records: Bring any previous chest imaging studies, surgical records (especially if you have had open-heart surgery), or clinical notes to assist the radiologist in comparative analysis.

During the Procedure

The Sternum AP/LAT/Oblique (DC) procedure is entirely non-invasive, painless, and typically completed within 10 to 15 minutes. A certified radiologic technologist at Dr. Essa Lab will guide you through the process, ensuring your safety and comfort at every step.

During the examination, you will be positioned in three distinct ways to capture the necessary views:

• Anteroposterior (AP) View: You will stand or lie flat against the digital detector plate. This view provides a broad overview of the sternum and its alignment with the clavicles, though the spine will be superimposed behind it.
• Oblique View: To project the sternum away from the dense shadow of the spine, the technologist will rotate your body slightly (usually 15 to 20 degrees) into a Right Anterior Oblique (RAO) or Left Anterior Oblique (LAO) position. This utilizes the air-filled lungs as a contrast background, making the sternum clearly visible.
• Lateral (LAT) View: You will stand sideways with your chest pressed forward and your arms pulled back behind your body. This profile view is exceptionally valuable for detecting anterior or posterior displacement of sternal fractures and evaluating the retrosternal space.

For each view, the technologist will step behind a protective screen to operate the digital X-ray machine. You will be instructed to remain perfectly still and hold your breath for a few seconds during the exposure to eliminate motion blur. The digital images are transmitted instantly to a computer console for quality verification before you are cleared to leave.

When is a Sternum AP/LAT/Oblique (DC) Performed?

Evaluation of Blunt Chest Trauma and Suspected Fractures

Physicians frequently request a sternal X-ray series following direct, blunt-force trauma to the anterior chest wall. This commonly occurs during motor vehicle accidents (such as steering wheel impact), sports-related collisions, or severe falls. Patients presenting with localized chest pain, visible bruising, swelling, and severe tenderness over the breastbone require immediate radiographic evaluation to rule out sternal fractures. Identifying a fracture is critical, as displaced sternal fragments can pose a risk of injury to the underlying heart, lungs, and major thoracic blood vessels.

Monitoring Post-Sternotomy Healing and Sternal Dehiscence

For patients who have undergone open-heart surgery, such as a Coronary Artery Bypass Graft (CABG) or cardiac valve replacement, the sternum must be surgically split (median sternotomy) and later closed using heavy surgical wires. If a patient experiences a clicking, popping, or grinding sensation in their chest, or presents with persistent chest wall instability and pain, a physician will order this test. The AP, lateral, and oblique views allow the radiologist to evaluate the integrity of the surgical wires, assess bone healing, and detect sternal dehiscence (separation of the sternal halves), which is a serious post-operative complication requiring prompt intervention.

Investigation of Unexplained Anterior Chest Wall Pain

Anterior chest wall pain can be a diagnostic challenge, as it mimics cardiac conditions like angina or myocardial infarction. Once life-threatening cardiac and pulmonary causes have been thoroughly ruled out through electrocardiograms (ECGs) and blood tests, a localized musculoskeletal cause must be investigated. A Sternum AP/LAT/Oblique (DC) X-ray helps clinicians evaluate the bony structures of the chest wall for underlying pathology, such as inflammatory conditions, stress fractures, or bone lesions, providing a clear anatomical explanation for the patient’s symptoms.

Assessment of Sternoclavicular and Sternocostal Joint Disorders

The sternoclavicular (SC) joints, where the collarbones connect to the upper sternum, and the sternocostal joints, where the ribs meet the breastbone, are susceptible to a range of disorders. Patients presenting with localized pain, swelling, or restricted shoulder movement may be suffering from sternoclavicular arthritis, subluxation, dislocation, or costochondritis. The specialized oblique and AP views obtained during this digital radiography study allow clinicians to visualize these joint spaces clearly, assessing for joint narrowing, bone spurs, or alignment anomalies.

Diagnosis of Suspected Sternal Infections or Osteomyelitis

Sternal osteomyelitis (bone infection) is a rare but severe condition that can develop after thoracic surgery or as a result of hematogenous spread of infection. Symptoms include localized warmth, redness, swelling, persistent pain, fever, or purulent drainage from a surgical wound. A physician will request a Sternum AP/LAT/Oblique (DC) to look for early radiographic signs of bone destruction, periosteal reaction, or sequestrum formation, which are vital for initiating targeted antibiotic therapy or surgical debridement.

What Does a Sternum AP/LAT/Oblique (DC) Detect?

A Sternum AP/LAT/Oblique (DC) examination is highly sensitive for identifying a wide range of structural, traumatic, inflammatory, and infectious conditions affecting the anterior chest wall. The primary clinical findings detectable through this digital imaging series include:

• Acute transverse fractures of the sternal body
• Manubriosternal joint dislocation or subluxation
• Sternal body displacement or angulation following trauma
• Depressed sternal fractures threatening mediastinal organs
• Sternal dehiscence (separation of post-sternotomy surgical margins)
• Broken, fractured, or displaced surgical sternal wires
• Sternal osteomyelitis characterized by localized bone destruction
• Osteolytic bone lesions indicative of metastatic disease
• Osteoblastic (sclerotic) lesions from secondary malignancies
• Primary bone tumors of the sternum, such as chondrosarcoma
• Degenerative joint disease (osteoarthritis) of the sternoclavicular joints
• Rheumatoid arthritis involvement of the sternoclavicular articulation
• Anterior or posterior dislocation of the sternoclavicular joint
• Calcification of the sternocostal cartilages (costochondritis assessment)
• Congenital sternal anomalies, including sternal cleft or bifid sternum
• Structural changes associated with pectus excavatum (funnel chest)
• Anatomical variations associated with pectus carinatum (pigeon chest)
• Sternal erosion secondary to adjacent thoracic aortic aneurysms
• Overlying soft tissue swelling or hematoma formation
• Subcutaneous emphysema (air trapped in soft tissues) post-trauma
• Generalized osteopenia or localized osteoporosis of the sternum
• Sternal fracture healing progress and callus formation
• Non-union or delayed union of chronic sternal fractures
• Benign bone cysts or fibrous dysplasia of the sternal bone
• Retrosternal soft tissue masses or displacement of retrosternal fat pads

Turnaround Time and Report Access at Dr. Essa Lab

Dr. Essa Lab is committed to providing rapid, highly accurate diagnostic reporting to facilitate timely medical care. Once your Sternum AP/LAT/Oblique (DC) imaging is complete, the high-resolution digital images are immediately transmitted to our secure Picture Archiving and Communication System (PACS). A Consultant Radiologist specializing in musculoskeletal and thoracic imaging will carefully review all three views, correlating the findings with your clinical history.

The finalized, medically validated diagnostic report is typically available within a few hours of your procedure, with a maximum turnaround time of 24 hours. Dr. Essa Lab offers seamless digital access to your reports and imaging files. Patients can easily view, download, and share their reports and high-quality digital X-ray images through the official Dr. Essa Lab online patient portal or mobile application. Physical copies of the report and high-resolution films can also be collected directly from the diagnostic center where the test was performed.

Sternum AP/LAT/Oblique (DC) Findings Overview

The following table outlines the key anatomical parameters evaluated during a Sternum AP/LAT/Oblique (DC) examination, comparing normal physiological appearances with potential pathological findings:

Structure / Parameter Evaluated	Normal Findings	Possible Abnormal Findings
Sternal Cortex & Alignment	Continuous, smooth outer bone margins; no displacement or angulation.	Cortical disruption, fracture lines, step-off deformities, anterior/posterior displacement.
Manubriosternal Joint	Intact joint space with normal alignment between the manubrium and sternal body.	Joint widening, subluxation, dislocation, or degenerative narrowing.
Sternoclavicular (SC) Joints	Symmetrical joint spaces; proper alignment of clavicular heads with the manubrium.	Asymmetry, joint space narrowing, osteophyte formation, anterior/posterior dislocation.
Sternal Wires (Post-Op)	Symmetrical, intact, tightly secured wires holding the sternal halves together.	Broken wires, wire migration, untwisting, or separation of the sternal halves (dehiscence).
Bone Density & Trabeculation	Homogeneous bone density with normal trabecular patterns throughout the sternum.	Localized lucency (osteomyelitis/lytic lesions), increased density (sclerosis/blastic lesions), or diffuse osteopenia.
Xiphoid Process	Normal variable anatomy, intact and aligned with the lower sternal body.	Fracture, displacement, or calcification anomalies.
Surrounding Soft Tissues	Normal retrosternal fat lines; no pre-sternal soft tissue swelling or air collection.	Pre-sternal hematoma, retrosternal mass, displacement of fat lines, or subcutaneous emphysema.
Sternocostal Junctions	Normal appearance of the junctions where ribs meet the sternum.	Severe calcification, erosion, or inflammatory changes.

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 Sternum AP/LAT/Oblique (DC)?

• Advanced Digital Radiography (DR) Technology: Dr. Essa Lab utilizes state-of-the-art digital X-ray systems that deliver exceptional image clarity while minimizing radiation exposure.
• Expert Radiologists: Your images are interpreted by highly experienced Consultant Radiologists specializing in thoracic and musculoskeletal diagnostics.
• Convenient Online Report Access: Access your reports and digital X-ray images anytime, anywhere, via the user-friendly Dr. Essa Lab online portal or mobile app.
• Strict Quality Control Standards: We maintain rigorous quality assurance protocols across all diagnostic centers to ensure the highest level of accuracy.
• Patient-Centered Care: Our compassionate, professional technologists ensure you are comfortable and correctly positioned throughout the procedure.
• Rapid Turnaround Time: We understand the importance of quick results, delivering comprehensive diagnostic reports within hours of your scan.
• Accessible Locations: With multiple branches conveniently located across Karachi and other major cities, accessing quality diagnostics is simple.
• Trusted Legacy: With over four decades of service, Dr. Essa Lab is one of Pakistan’s most trusted and recognized names in healthcare diagnostics.