The cardiologists surrendered, feeling a bit embarrassed asking their neurosurgery colleagues on site. Lin Chenrong walked behind Student Xie and whispered, "Do you know what the situation is now?"

"The first image is a right-sided aortic arch angiography, which is normal." Xie Wanying started discussing with Teacher Lin, choosing to begin with the cardiovascular angiography that Teacher Lin was most familiar with.

Before she spoke, Lin Chenrong hadn’t actually realized that the neuroradiological angiography starts from the aortic arch area of the heart, and he was a bit stunned.

What was more alarming was that as a specialist in cardiology, he hadn’t made the connection, while the intern managed to grasp it immediately, without any confusion.

It was right to ask Student Xie, Lin Chenrong thought. Younger or less capable people in neurosurgery might not think as quickly as she did.

Deputy Director Lv on the opposite side turned his head slightly, as if eavesdropping on their conversation. Interventional surgery is a new technology, not the forte of veteran doctors used to traditional surgery. Doctors like Deputy Director Lv do indeed find it difficult to link concepts quickly.

"Keep talking," Lin Chenrong said to Student Xie, standing beside her and listening intently.

That neuroradiological angiography starts from the aortic arch area is not surprising. Because the aortic arch is the beginning of the entire arterial system, including the cerebral arterial network. Specifically, the aortic arch gives off the brachiocephalic trunk, the left common carotid artery, and the left subclavian artery; the brachiocephalic trunk branches into the right common carotid and right subclavian arteries. The left and right common carotid arteries branch into the left and right internal carotid arteries, and the left and right subclavian arteries branch into the left and right vertebral arteries.

The key point here is that the left and right internal carotid arteries and the left and right vertebral arteries branch out the arterial trunks of the cerebral vessels.

Therefore, after checking the aortic arch area, the next part in neuroradiological vascular examination is the left and right internal carotid arteries and the left and right vertebral arteries.

Just like checking a water network system, it’s necessary to first determine if there’s an issue with the source, and then proceed to check each channel in the network for problems.

"The second step is examining the left and right internal carotid arteries, and for now, they appear normal. The right vertebral artery seems to have a slightly narrowed segment," Xie Wanying continued to report the imaging results found from the surgery examination.

It’s already been identified? Is there an issue with the patient’s blood vessels? The group of people standing behind was astonished. It indicated that the surgeons in the operating room were so swift in their actions that the spectators, who were only observing and not participating, couldn’t keep up with the pace with their eyes and minds.

Student Xie described each scene without leaving out a single detail; her fast-paced memory was truly impressive.

"Wasn’t this written in the previous CT report?" Lin Chenrong asked some questions, as he hadn’t reviewed the patient’s medical records and was unclear about certain issues.

"The narrowing in this segment of the patient’s blood vessel isn’t completely occluded. After all, the patient had undergone thrombolytic therapy before," Xie Wanying explained.

"Oh," Lin Chenrong turned his head to the side, waiting for her to continue, "Are they going to address the discovered stenosis now?"

"It can be addressed. However, the main focus is to find the intracranial aneurysm," Xie Wanying did not forget the surgical theme discussed earlier in the neurosurgery meeting.

This slight stenosis is easy to handle. However, to ultimately eliminate the clots present in the patient’s body requires addressing the source, preventing the formation of clots within the blood vessels. If there’s atrial fibrillation, treat the atrial fibrillation; if it’s other conditions like hyperlipidemia or hypertension, medication should be taken long-term post-surgery. Surgery often resolves local symptoms but not the root cause.