https://radiopaedia.org/articles/chiba-needle

Introduction

The outstanding performance of the Chiba needle stems not only from its sophisticated design and manufacturing standards but also from its extensive, in-depth clinical adoption. Comparable to an arrow that strikes a willow leaf dead-center, guided by the "vision" of imaging equipment, it accurately targets a wide variety of lesions deep inside the human body. Initially developed solely for biliary disease diagnosis, it now supports diagnostic and therapeutic procedures across the thorax, abdomen, pelvis, bone and soft tissues. The Chiba needle has become a standard essential instrument across multiple clinical departments, including interventional radiology, oncology, gastroenterology and pulmonology. This paper systematically sorts out core clinical application scenarios of the Chiba needle across specialties, and illustrates its pivotal hub role within the modern disease diagnosis and treatment system.

1. Cornerstone of Diagnosis: Precise Acquisition of Histopathological Specimens

Definitive pathological diagnosis lays the foundation for treating cancers and other severe illnesses, and the Chiba needle stands as a gold-standard tool for percutaneous core needle biopsy.

• Thoracic procedures: CT-guided puncture biopsy for pulmonary nodules and mediastinal masses. Its ultra-fine outer diameter drastically reduces risks of pneumothorax and hemorrhage, making it especially suitable for lesions adjacent to the pleura or major blood vessels.
• Abdominal procedures: Biopsy of lesions in the liver, pancreas, kidneys, adrenal glands and retroperitoneal lymph nodes. For instance, puncture sampling of suspected pancreatic lesions acts as a critical step to confirm a pathological diagnosis.
• Bone and soft tissue procedures: Biopsy of bone tumors, muscular masses and subcutaneous swellings. Its high puncture precision enables differentiation between benign and malignant lesions, as well as accurate tumor subtyping.
• Key advantages: Compared with open surgical biopsy, Chiba needle biopsy delivers definitive strengths including minimal tissue trauma, fewer complications, lower medical costs and faster patient recovery, paired with high diagnostic accuracy. It has become the first-line confirmative modality for most deep-seated lesions.

2. Drainage and Decompression Therapy: Minimally Invasive Resolution for Fluid Accumulation

The Chiba needle is ideal for establishing primary drainage access, and frequently serves as a pathway to deploy larger drainage catheters afterwards.

• Abscess and cyst drainage: For hepatic abscesses, intra-abdominal abscesses, renal cysts and pancreatic pseudocysts, imaging guidance directs the Chiba needle into the abscess or cyst cavity to aspirate fluid for laboratory testing. A guidewire can be advanced through the needle tract, followed by placement of an indwelling drainage tube for continuous drainage, eliminating the need for open laparotomy.
• Biliary decompression (PTCD): For patients with obstructive jaundice, a Chiba needle is percutaneously advanced through the liver into dilated bile ducts. Successful cannulation enables bile drainage to rapidly reduce bilirubin levels, preparing patients for subsequent surgery or stent implantation. This iconic original application remains one of its most vital clinical functions to this day.
• Nephrostomy: When urinary tract obstruction causes hydronephrosis, the needle punctures the renal pelvis to drain urine and preserve residual renal function.

3. Vascular and Luminal Access Creation: The Gateway to Interventional Therapy

In numerous complex interventional surgeries, the Chiba needle acts as a pioneer to establish initial access tracts.

• Transjugular Intrahepatic Portosystemic Shunt (TIPS): A technically demanding operation for complications of portal hypertension. Surgeons access the hepatic vein via the jugular vein, then use a Chiba needle to puncture from the hepatic vein toward the portal vein to form a shunt channel. This cannulation step dictates overall procedural success, requiring exceptional needle maneuverability and real-time imaging visibility.
• Vascular cannulation: For cases where standard puncture proves difficult-such as severe anasarca, morbid obesity or fragile, narrow vessels-ultrasound-guided Chiba needles achieve precise arterial and venous puncture to build vascular access.

Vertebroplasty / Kyphoplasty: When treating vertebral compression fractures, the first step involves accurate puncture of the affected vertebral body using a Chiba needle or equivalent bone access needle, creating a tract for subsequent bone cement injection.

4. Contrast Medium Infusion and Drug Delivery: A Precision Delivery Vehicle

• Cholangiography / Pancreatography: After percutaneous puncture of the bile or pancreatic duct, contrast medium is injected via the Chiba needle to clearly delineate ductal anatomy and lesion locations. This is a vital diagnostic technique for biliary calculi, malignancies and strictures.
• Nerve block and pain management: Under CT or ultrasound guidance, the Chiba needle is positioned adjacent to target nerve plexuses (e.g., celiac plexus, spinal nerve roots). Absolute ethanol or analgesic agents are injected to manage oncologic pain and refractory chronic pain.
• Auxiliary localization for tumor ablation: Prior to radiofrequency, microwave and other ablation therapies, a Chiba needle may be placed at the tumor margin as a localization marker to assist planning ablation zones and puncture trajectories.

Conclusion

The full clinical application spectrum of the Chiba needle fully embodies the core tenets of modern medicine: interventional management, minimal invasiveness and pinpoint precision. It crosses traditional departmental boundaries to function as a versatile problem-solving device. Its true value extends far beyond being merely a hollow needle-it embodies a core clinical mindset: resolving complex deep bodily pathologies through the smallest possible traumatic entry point. With ongoing advancements in image-guided technology, such as fusion imaging and 3D navigation, the puncture accuracy of the Chiba needle will continue to improve, alongside expanding clinical indications. It will sustain its irreplaceable role in boosting patient prognoses and elevating medical efficiency. For practicing clinicians, proficient mastery of Chiba needle techniques equips them with a universal key unlocking the full scope of minimally invasive interventional therapy.