What is comprehensive endoscopic ultrasound (EUS)?

Comprehensive EUS combines detailed ultrasound imaging from inside the GI tract with advanced interventions such as tissue sampling, cyst drainage, biliary access when ERCP is not possible, and specialized oncology staging.

When is EUS preferred over CT or MRI?

EUS often excels at evaluating pancreaticobiliary lesions, small subepithelial masses, and fine mural detail adjacent to the GI tract, complementing cross-sectional imaging rather than replacing it.

Is therapeutic EUS the same as diagnostic EUS?

Therapeutic EUS adds minimally invasive treatments, LAMS drainage, gallbladder access, gastroenterostomy, duct drainage, beyond staging or biopsy alone; availability depends on center expertise.

How long does an EUS procedure take?

Diagnostic examinations commonly finish within roughly 30-60 minutes; therapeutic procedures requiring dilation or stents take longer depending on complexity and anesthesia.

Comprehensive EUS (Endoscopic Ultrasound)

Dr. Devani combines high-resolution internal imaging with advanced interventional techniques to provide surgical-grade results without traditional incisions.

Endoscopic ultrasound (EUS) uses a specialized endoscope fitted with an ultrasound probe so your doctor can visualize not only the inner lining of the esophagus, stomach, or intestine but also the organs and lymph nodes that lie just beyond the intestinal wall, often with clearer detail than external scanning alone for certain pancreatic and bile duct problems. Dr. Devani offers both diagnostic EUS, including staging and needle sampling when appropriate, and therapeutic EUS procedures that can drain fluid collections, relieve obstruction, or provide targeted access when surgery carries excess risk. Patients are seen in Greenville, SC, with referral pathways throughout Upstate South Carolina for complex pancreaticobiliary and digestive disease. For many conditions, EUS provides highly accurate, minimally invasive evaluation and treatment through natural body passages, which can reduce reliance on large incisions while supporting precise, individualized care plans.

Diagnostic EUS & Oncology Staging

Utilizing EUS for superior visualization of the gastrointestinal tract and adjacent organs compared to standard CT or MRI.

Diagnostic EUS brings the ultrasound transducer into close proximity with the pancreas, bile duct, and lymph nodes, producing layered images that sometimes reveal small tumors, subtle wall invasion, or cyst characteristics that CT or MRI alone can miss or understage. CT and MRI remain essential for surveying the whole body, yet EUS frequently adds decisive local detail for esophageal, gastric, rectal, pancreatic, and biliary cancers when treatment hinges on accurate T-stage, vascular involvement, or needle-confirmed pathology.

Patients who benefit include those with pancreatic cysts or masses, unexplained bile duct narrowing, subepithelial tumors, or abnormal lymph nodes where tissue diagnosis or refined staging changes chemotherapy, radiation, or surgical planning.

Cancer Diagnosis & Staging

Precision staging for esophageal, gastric, rectal, and pancreatic malignancies, as well as biliary and neuroendocrine tumors.

Pancreatic & Biliary Evaluation

Detailed assessment of solid masses, cysts (IPMN, pseudocysts), bile duct strictures, and gallbladder polyps.

Subepithelial Lesions

High-definition evaluation of GISTs, leiomyomas, and other wall lesions to determine the need for resection.

Targeted Tissue Sampling

Expert performance of Fine Needle Aspiration (FNA) and Fine Needle Biopsy (FNB) for accurate diagnosis and molecular testing.

Adjacent Organ Assessment

Evaluation of mediastinal lymph nodes, left adrenal gland lesions, and left-lobe liver lesions.

Advanced Imaging & Characterization

High-resolution imaging with contrast enhancement and elastography for detailed tissue characterization and differentiation of benign versus malignant lesions.

Therapeutic & Interventional EUS

Advanced "interventional ultrasound" procedures that offer minimally invasive solutions for complex conditions.

Therapeutic, or interventional, EUS uses the same imaging platform to guide needles, stents, or drainage devices through the digestive tract wall so fluid collections, obstructed ducts, or inaccessible bile ducts can be treated without open surgery whenever anatomy and clinical goals allow.

Typical candidates include patients with complicated pancreatitis, blocked bile ducts after failed ERCP, postsurgical anatomy that blocks standard endoscopic access, or symptomatic fluid collections that require controlled drainage.

Goals usually center on controlling infection, relieving jaundice or obstruction, bridging critically ill patients to definitive therapy, or avoiding higher-risk operations when endoscopic control can be achieved safely.

Pancreatic Collection Management

Drainage of pseudocysts and walled-off necrosis utilizing Lumen-Apposing Metal Stents (LAMS) and direct necrosectomy.

EUS-Guided Biliary & Gallbladder Drainage

Creating internal bypasses or drainage pathways (hepaticogastrostomy) when traditional ERCP is not feasible.

EUS-Guided Gastroenterostomy

Management of gastric outlet obstruction and afferent limb syndrome through minimally invasive endoscopic bypass.

Pancreatic Duct Interventions

Specialized ductal drainage and stent placement using rendezvous techniques.

Abscess & Collection Drainage

Minimally invasive drainage of intra-abdominal, pelvic, and mediastinal fluid collections.

EUS-Guided GATE & EDGE Procedures

Minimally invasive endoscopic techniques that create temporary internal channels to the bypassed stomach, allowing for complex therapeutic interventions and ERCP in patients with prior surgical reconstructions like Roux-en-Y gastric bypass.

Endohepatology

Dr. Devani is at the forefront of EUS-guided vascular and liver procedures for patients with advanced hepatobiliary disease.

Endohepatology refers to advanced endoscopic approaches, primarily under EUS guidance, that address liver disease and portal hypertension complications from inside the GI tract rather than through the abdominal wall alone.

EUS-guided vascular and hepatic procedures can target bleeding gastric varices or obtain hemodynamic measurements with direct visualization, sometimes avoiding larger surgical shunts or blind percutaneous punctures when clinical circumstances favor an endoscopic corridor.

Selected patients with cirrhosis-related bleeding risk, portal hypertension evaluation needs, or focal liver lesions requiring tissue may therefore benefit from precision-guided therapy or biopsy aligned with hepatology and transplant center recommendations.

Portal Pressure Gradient (PPG) Measurement

Direct, minimally invasive measurement of portal vein pressure to accurately assess the severity of cirrhosis.

Gastric Variceal Therapy

High-precision treatment of varices using targeted coil embolization and glue therapy to prevent life-threatening bleeding.

EUS-Guided Liver Biopsy

A safer, more comfortable alternative to traditional percutaneous biopsy for targeted lesion evaluation.

Pain Management & Targeted Tumor Therapy

Utilizing EUS to improve quality of life and enhance the efficacy of oncological treatments.

EUS-guided pain interventions deliver medication precisely to the celiac plexus, the nerve bundle that transmits visceral pain from the pancreas and surrounding organs, under continuous ultrasound visualization from inside the stomach.

Celiac blocks or neurolysis are often considered for patients with pancreatic cancer-related pain or selected cases of chronic pancreatitis when systemic opioids remain inadequate or side-effect laden.

Likewise, fiducial placement or tumor ablation discussed elsewhere on this page integrates EUS imaging so radiation oncology or future focal therapy can be aligned anatomically with fewer invasive steps when multidisciplinary teams agree on candidacy.

Celiac Plexus Neurolysis & Block

Targeted injections to manage chronic abdominal pain associated with pancreatic cancer or chronic pancreatitis.

Tumor Ablation

Minimally invasive radiofrequency or ethanol ablation of GI tumors.

Fiducial Marker Placement

Precise placement of markers to guide stereotactic radiation therapy for GI and pancreatic tumors.