Reading MRIs at Night

At night, after all consultations and surgeries have ended, only the cool black-and-white cross-sections remain on the clinic monitor. In this hour, cleared of the day’s bustle, I face the anatomical structures within the images in absolute solitude. Scrolling the mouse, I objectively measure the trajectory of the disc compressing the nerve and the thickness of the hypertrophied ligament. Yet, the longer I stare at the monitor, the more I am confronted with the gap between the physical lesions of the spine and the symptoms of the patient who sat before me earlier that day.

For a surgeon, the simplest and clearest moments are when a patient’s symptoms perfectly align with the MRI findings. A distinct rupture, a clear nerve compression. In such cases, even if the lesion is deep and the surgical approach is demanding, the physician’s decision is unequivocal. Because the cause is certain, the direction of treatment is unwavering, and the postoperative outcomes are generally excellent. This is where the surgeon’s role — physically resolving a structural problem — shines most intuitively.

However, what plunges me into deep deliberation before the monitor at night are the moments of discrepancy. There are times when a patient complains of excruciating pain, despite the MRI showing only mild disc protrusion or nerve compression. Is this small lesion on the screen truly the cause of the agony the patient is experiencing? Could there be another organic cause hidden from the imaging? In my experience, if one hastily resorts to surgical treatment when the lesion is mild and does not precisely correlate with the symptoms, the outcome is overwhelmingly poor. To avoid the folly of taking up the scalpel led merely by images, a surgeon must ask themselves countless questions before the monitor.

The opposite scenario is also common. The spinal canal may be severely narrowed, or degenerative changes may be pronounced across multiple segments, making it look as though the patient would struggle even to walk based on the imaging alone; yet, the patient maintains their daily life fully intact without significant pain. This paradox, which renders the chaotic black-and-white cross-sections moot, reminds a spine surgeon of a very crucial fact.

An MRI, ultimately, is nothing more than a static anatomical shadow.

We do not treat the narrowed spinal canal or the herniated disc itself. We treat an actual, suffering human being who stands at the intersection of lesion and symptom. Even in the era of imaging medicine that perfectly reconstructs anatomical structures, the final rationale for diagnosing an illness and determining the direction of the blade never exists solely within the black-and-white monitor.

The act of rereading images at night goes beyond a physical simulation to plot a surgical trajectory; it is a process of gauging the reality of the patient beyond the shadow of the MRI and recalibrating my clinical judgment. Because diagnosis is made by the physician, not the image, and at the center of that judgment must always be the patient’s symptoms.