With reference to the treatment of cancerous tumors, a tool called cyberknife has been making the news. In this context, Which one of the following statements isnot correct?
It can map the spread of tumors in the body
Understanding Cyberknife for Cancer Treatment
The question asks us to identify the statement that is not correct regarding the Cyberknife tool used for treating cancerous tumors. Let's examine each statement in the context of what a Cyberknife system is and how it works.
What is Cyberknife?
Cyberknife is a non-invasive treatment system used for both cancerous and non-cancerous tumors, as well as other medical conditions requiring radiation therapy. It is a type of stereotactic radiosurgery or stereotactic body radiation therapy.
Analysis of the Statements
Let's break down each option:
- It is a robotic image guided system
This statement is accurate. The Cyberknife system uses a robotic arm to deliver radiation beams. This arm is guided by real-time imaging to track the tumor's position, even as the patient breathes or moves slightly. This makes it a robotic and image-guided system. - It delivers an extremely precise dose of radiation
This is also correct. Cyberknife is known for its ability to deliver high doses of radiation to a very focused area, minimizing damage to surrounding healthy tissues. The precision is a key advantage. - It has the capability of achieving sub-millimetre accuracy
Precision is a hallmark of stereotactic radiosurgery systems like Cyberknife. They are designed to target tumors with very high accuracy, often within a millimetre or less, to effectively treat the target while sparing critical structures nearby. So, achieving sub-millimetre accuracy is well within its capability. - It can map the spread of tumors in the body
This statement is not correct. The Cyberknife is a *treatment delivery* system. It uses imaging (like X-rays taken during treatment or pre-treatment CT/MRI scans) to *guide* the radiation beams to the tumor location. However, it does not *map the spread* of tumors throughout the body. Mapping the spread (also known as staging) is done using diagnostic imaging techniques such as PET scans, CT scans, MRI scans, or biopsies, which are performed *before* treatment planning begins. The Cyberknife system uses the information from these mapping procedures to plan and deliver the radiation treatment. It does not perform the function of diagnosing or staging the cancer's spread itself.
Therefore, the statement that is not correct is that Cyberknife can map the spread of tumors in the body.
Summary of Cyberknife Features vs. Diagnostic Imaging
| Feature | Cyberknife System | Diagnostic Imaging (e.g., PET, CT, MRI) |
|---|---|---|
| Primary Function | Delivering precise radiation treatment to a target area. | Mapping and diagnosing diseases, including the spread of tumors (staging). |
| Role of Imaging | Used for guiding the radiation delivery and tracking the tumor during treatment. | Used for visualizing internal structures, identifying tumors, and assessing their size and location, including distant spread. |
| Output | Radiation beams targeting a specific area. | Images showing anatomical details and/or metabolic activity. |
Based on this analysis, the function of mapping the spread of tumors belongs to diagnostic imaging tools, not the Cyberknife treatment system itself.
Revision Table: Key Aspects of Cyberknife
| Aspect | Description |
|---|---|
| Type of System | Robotic, image-guided radiosurgery/radiotherapy system |
| Function | Precisely delivering high doses of radiation to tumors or target areas |
| Accuracy | Sub-millimetre accuracy capability |
| Guidance | Uses real-time imaging to track and target tumors |
| Mapping Tumor Spread | Does NOT map tumor spread; relies on prior diagnostic imaging for this purpose. |
Additional Information on Cancer Treatment Technologies
Cancer treatment involves various modalities, often used in combination. These include surgery, chemotherapy, immunotherapy, targeted therapy, and radiation therapy. Cyberknife is a sophisticated form of radiation therapy.
- Radiation Therapy: Uses high-energy particles or waves, such as X-rays, gamma rays, or protons, to destroy or damage cancer cells.
- Stereotactic Radiosurgery (SRS) / Stereotactic Body Radiation Therapy (SBRT): These are highly precise forms of radiation therapy that deliver a high dose of radiation in one to a few fractions (treatment sessions). SRS is typically used for targets in the brain or spine, while SBRT is used for targets elsewhere in the body. Cyberknife is a system that can perform both SRS and SBRT.
- Image Guidance: Modern radiation therapy systems like Cyberknife use imaging (e.g., X-ray, CT) during treatment setup and delivery to ensure the radiation is accurately delivered to the target while minimizing dose to surrounding healthy tissues.
- Robotics: The robotic arm in systems like Cyberknife allows for the radiation source to move to many different positions and angles around the patient, enabling the delivery of radiation beams from multiple directions that converge precisely on the tumor.
Understanding the difference between diagnostic tools (for mapping and staging) and treatment tools (like Cyberknife for delivery of radiation) is crucial in the context of cancer care technologies.
Important Questions from Science and Technology
Which of the following is India's first privately developed rocket launched by ISRO recently?
As of January 2020, which of the following countries had NOT independently launched a human into space?
In April 2019, scientists in ________ produced the world’s first 3D printed heart using human tissue.
In January 2020, China tested the world’s first high-speed driverless bullet train between Beijing and ________.
ISRO’s Polar Satellite Launch Vehicle (PSLV) successfully launched a remote sensing satellite of which country on 28th February 2021?
